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O
O' Donovan, B

Royal College of Surgeons in Ireland
(79) Improving Patient Safety: A Qualitative Study of The Implementation of the 'Know Check Ask' Medication Safety Campaign Among Healthcare Professionals, Patients and Carers
B O' Donovan
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Obidi, Joyce

Food and Drug Administration
(257) Background Rates of Adverse Events of Special Interest for COVID-19 Vaccine Safety Monitoring Among Adults in the United States
Joyce Obidi
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OBrien, Emily

Duke Clinical Research Institute
(84) Hydroxychloroquine for Pre-Exposure Prophylaxis of COVID-19 in Health Care Workers: A Randomized, Multicenter, Placebo-Controlled Trial (HERO-HCQ)
Emily OBrien
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(300) Novel Recruitment, Data Collection, and Safety Reporting Methods in The Era of COVID-19: Design of a Post-Emergency Use Authorization COVID-19 Vaccination Safety-Surveillance Study
Emily OBrien
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Ochi, Taichi

Department of PharmacoTherapy, -Epidemiology & -Economics, Faculty of Science and Engineering, University of Groningen, Netherlands
(63) Community Pharmacist-Led Interventions and Their Impacts on Patients with Type 2 Diabetes in Low-and Middle-Income Countries: A Scoping Review
Taichi Ochi
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(65) Introducing The Dutch ISPE Student Chapter
Taichi Ochi
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Ochu, Chinwe Lucia

Nigeria CDC
(43) Baseline Study for Improving Diagnostic Stewardship at Secondary Health Care Facilities in Nigeria
Chinwe Lucia Ochu
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Odebajo, Oluwaseun

Nigeria CDC
(43) Baseline Study for Improving Diagnostic Stewardship at Secondary Health Care Facilities in Nigeria
Oluwaseun Odebajo
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Odsbu, Ingvild

Department of Mental Disorders, Norwegian Institute of Public Health
(36) A Nationwide Registry-Linkage Study of Mental Disorders in Chronic Pain Patients: Characteristics of Users of Opioid Versus Non-Opioid Analgesics
Ingvild Odsbu
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(70) Antimicrobial Use in Sweden During The COVID-19 Pandemic: Prescription Filling and Inpatient Care Requisition Patterns
Ingvild Odsbu
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(101) Antibiotic Use During Pregnancy: A Swedish Drug Utilization Study from 2006 to 2019
Ingvild Odsbu
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(196) So Many Countries, So Many Customs: A Register-Based Analysis of Conduct Disorder Prevalence and Treatment Patterns in Four Western Countries
Ingvild Odsbu
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Oduol, Theresa A.

Brigham and Women's Hospital
(52) Improving The Accuracy of Automated Gout Flare Ascertainment Using Natural Language Processing of Medical Records and Linked Medicare Claims Data
Theresa A. Oduol
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Ofei-Palme, Charles

Korle-Bu Teaching Hospital
(254) COVID-19 Vaccine Hesitancy Among Health Care Workers: The Case of Pharmacy Staff of The Korle Bu Teaching Hospital
Charles Ofei-Palme
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Offiah, Roseanne

University of Exeter Medical School
(116) Sex Differences Among Users of NSAIDs and Opioids During COVID-19 Pandemic in Manitoba, Canada
Roseanne Offiah
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Oger, Emmanuel

EA 7449 REPERES (Pharmacoepidemiology and Health Services Research), Rennes 1 University, Rennes, France
(269) Risk of Suicidal Behavior Associated with Benzodiazepines: A Nationwide Case-Crossover Study
Emmanuel Oger
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Ogilvie, Rachel

Optum Epidemiology
(20) Using Healthcare Claims to Evaluate Long Haul COVID-19 Disease
Rachel Ogilvie
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(217) Most Common Diagnoses During Pregnancy in a Commercially Insured Population of Women
Rachel Ogilvie
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(257) Background Rates of Adverse Events of Special Interest for COVID-19 Vaccine Safety Monitoring Among Adults in the United States
Rachel Ogilvie
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(294) Reduction in Data Lag Using Optum Pre-Adjudicated Health Insurance Claims
Rachel Ogilvie
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Ogundare, Omolola

University of Ibadan
(310) Drug Use Pattern and Adverse Reactions Among Pregnant Women Accessing Care at The University College Hospital, Ibadan, Nigeria
Omolola Ogundare
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Oh, GYeon

Sanders-Brown Center on Aging, University of Kentucky
(134) Predicting Risk-Stratified Unmet Needs Among Adolescents and Young Adult Cancer Survivors in USA
GYeon Oh
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(165) The Association of Gabapentin Use and Change of Motor Functions in Older Adults with Normal Cognition
GYeon Oh
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Oh, In-Sun

School of Pharmacy, Sungkyunkwan University
(AJ) Association of Mortality by Statin Intensity in Chronic Liver Disease Patients with Atherosclerotic Cardiovascular Disease: A Nationwide Cohort Study
In-Sun Oh
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Ohtomo, Takumi

Chugai Pharmaceutical Co., Ltd.
(M) Development of a Tool for Visualizing Patient Journeys Using Disease Blogs on The Internet
Takumi Ohtomo
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Ojo-Aromokudu, Oyinkansola

London School of Hygiene and Tropical Medicine
(249) Exploring The Impact of Mental Health Conditions on Vaccine Uptake in High-Income Countries
Oyinkansola Ojo-Aromokudu
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Ojo, Emmanuel

Harvard Pilgrim Health Care Institute, Harvard Medical School Department of Population Medicine
(201) Characterizing Pediatric Members in The Sentinel Distributed Database
Emmanuel Ojo
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(Y) Use of Valganciclovir/Ganciclovir [(v)GCV] for Treatment of Congenital Cytomegalovirus (cCMV) Infection in the United States: Evidence from The Sentinel Distributed Database, 2008-2020
Emmanuel Ojo
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Okafor, Charles

Griffith University
(218) Association of Joint Replacement Registries with Burden of Revision Changes
Charles Okafor
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Okala, PhD, Sandra

PPD, part of Thermo Fisher Scientific
(210) Demographic Representativeness of Participants in Pregnancy Registries
Sandra Okala, PhD
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Okalebo, Faith

UNiversity of Nairobi
(186) Medication Errors Among Patients Admitted with Cardiovascular Disorders at The Critical Care Unit of a National Referral Hospital in Kenya
Faith Okalebo
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(248) Adverse Birth Outcomes Associated with Drug Use in Pregnancy at a Referral Teaching Hospital in Kenya
Faith Okalebo
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O'Kelly, James

Amgen Ltd, UK
(89) Utilization Patterns and Predictors of Persistence for Anti-Osteoporosis Treatment Initiators in Denmark: A Population-Based Cohort Study
James O'Kelly
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Oki, Yasuhiro

Genentech, Inc.
(281) Patient Characteristics, Outcomes and Potential for Bias in Oncological Real-World Data Studies with Imaging-Derived Response Endpoints
Yasuhiro Oki
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Oko-osi, Hafiz

Gilead Sciences, Inc
(214) Lower Healthcare Costs for Commercially Insured Patients with Rheumatoid Arthritis in Remission
Hafiz Oko-osi
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Okumura, Kaho

Division of Drug Development and Regulatory Science, Faculty of Pharmacy, Keio University
(249) Real-Time Survey of Vaccine Safety of the mRNA-1273 SARS-CoV-2 Vaccine in Workplace Vaccination at Keio University
Kaho Okumura
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Okuyama, Masaru

Initiative Inc.
(M) Development of a Tool for Visualizing Patient Journeys Using Disease Blogs on The Internet
Masaru Okuyama
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Okwor, Tochi

Nigeria CDC
(43) Baseline Study for Improving Diagnostic Stewardship at Secondary Health Care Facilities in Nigeria
Tochi Okwor
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Olaoye, Omotayo

College of Medical, Veterinary and Life Sciences, University of Glasgow
(266) Evaluating The Effectiveness of Interventions to Improve Human Papillomavirus (HPV) Vaccine Uptake in Africa: A Systematic Review
Omotayo Olaoye
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Olayemi, Sunday

Department of Pharmacology,Therapeutics& Toxicology, College of Medicine,University of Lagos, Idi Araba, Lagos, Nigeria
(31) Antihypertensive Prescription and Blood Pressure Patterns in Patients with Chronic Kidney Disease at a Nephrology Outpatient Clinic in Lagos University Teaching Hospital, Idi-Araba
Sunday Olayemi
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Olde Hartman, Tim

Radboud UMC
(B) Quality of Life in Patients with Post-COVID-Syndrome: Combining Data from Electronic Health Records and Questionnaires
Tim Olde Hartman
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Olesen, Morten

Clinical Pharmacology, Pharmacy and Environmental Medicine, Department of Public Health, University of Southern Denmark, Denmark
(33) Antiplatelet Drugs and Breast Cancer Risk in a Large Nationwide Danish Case-Control Study
Morten Olesen
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(94) Opioid Prescriber Responsibility: A Danish Drug Utilization Study
Morten Olesen
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(AR) Changing Characteristics Over Time of Individuals Receiving COVID-19 Vaccines in Denmark: A Population-Based Descriptive Study of Vaccine Uptake
Morten Olesen
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Oliveira, Gerusa

Faculty of Pharmacy, Universidade Federal de Minas Gerais
(5) Evaluation of The Effectiveness and Safety of Biological Disease-Modifying Drugs for The Treatment of Ankylosing Spondylitis in The Unified Health System
Gerusa Oliveira
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(6) Evaluation of The Rate of Discontinuation of Treatment with Biological Drugs in Patients with Ankylosing Spondylitis: Pre-Pandemic and Pandemic Period
Gerusa Oliveira
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(7) Evaluation of The Use Profile of Biological Medicines and Synthetic Target-Specific Medicines for The Treatment of Rheumatoid Arthritis in The Sus in The State of Minas Gerais, Brazil
Gerusa Oliveira
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Oliveria, Susan

Genesis Research, LLC
(G) Selection of Censoring Schemes for Analyzing Overall Survival in Real-World Data with Linked Mortality Information
Susan Oliveria
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Oliveri, David

Genesis Research
(AE) Application of Claims‑Based Algorithms to Ascertain Gestational Age Among Multiple Pregnancy Outcomes
David Oliveri
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Olivier, Jake

School of Mathematics and Statistics, UNSW Sydney, Australia
(120) A Multivariate Interrupted Time Series Analysis Assessing the Impacts of Half-Pack Sizes and Increased Access Restrictions on Publicly Subsidised Opioids in Australia
Jake Olivier
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Olorukooba, Abdulhakeem

Ahmaadu Bello University Teaching Hospital
(43) Baseline Study for Improving Diagnostic Stewardship at Secondary Health Care Facilities in Nigeria
Abdulhakeem Olorukooba
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Olsen, David

Norwegian Medicines Agency
(121) Prescribing Patterns of Codeine and Alternatives in Children Across Five EEA Countries Between 2010 and 2017
David Olsen
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Olsen, Michael

Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
(16) Type 2 Diabetes Phenotypes and Polyneuropathy: A Prevalence Study in The DD2 Cohort
Michael Olsen
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Olshan, Andrew

Department of Epidemiology, University of North Carolina Gillings School of Global Public Health, Chapel Hill, NC
(221) Adjuvant Radiation Therapy and Mortality in Older Women with Early-Stage Endometrial Cancer: An Analysis Using The SEER-Medicare Linkage
Andrew Olshan
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Olson, Rachel

Duke Clinical Research Institute
(84) Hydroxychloroquine for Pre-Exposure Prophylaxis of COVID-19 in Health Care Workers: A Randomized, Multicenter, Placebo-Controlled Trial (HERO-HCQ)
Rachel Olson
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Oluka, Margaret

University of Nairobi
(248) Adverse Birth Outcomes Associated with Drug Use in Pregnancy at a Referral Teaching Hospital in Kenya
Margaret Oluka
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OLUWASOLA, Timothy

College of Medicine, University of Ibadan
(310) Drug Use Pattern and Adverse Reactions Among Pregnant Women Accessing Care at The University College Hospital, Ibadan, Nigeria
Timothy OLUWASOLA
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O'MAHONY, Mary

EUROMEDICAT (Cork & Kerry)
(10) The Medikeye Project: The First European Study on in Utero Medicine Exposure and Congenital Anomalies of Eyes
Mary O'MAHONY
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Omidifar, Navid

Department of Pathology, Shiraz University of Medical Sciences, Shiraz, Iran.
(81) A Pharmacoepidemiologic Study of Antibiotics Prescription Patterns in a Tertiary Care Hospital
Navid Omidifar
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Omondi, Barrack

Pharmaco- and Device Epidemiology, Centre for Statistics in Medicine - Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford, Windmill Road, Oxford
(34) Techniques for Characterising Long COVID in Real World Data
Barrack Omondi
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Onakpoya, Igho

University of Oxford
(234) Features of Case Reports That Support Putative Causal Relationships Between Medicinal Products and Suspected Adverse Drug Reactions. Preliminary Results from a Scoping Review
Igho Onakpoya
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Onasanya, Oluwadamilola

Department of Pharmaceutical Health Services Research, School of Pharmacy, University of Maryland Baltimore
(135) Engagement with Digital Health Technologies for Self-Monitoring of Symptoms Among Adolescents with Mood Disorders Treated with Antidepressants
Oluwadamilola Onasanya
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Onken, Marlies

PVZ Embryonaltoxikologie, Institut für Klinische Pharmakologie und Toxikologie, Charité – Universitätsmedizin Berlin
(227) Treatment with Tumor Necrosis Factor Alpha Inhibitors During Pregnancy and Occurrence of Severe Infections Among Infants: A Descriptive Analysis Based on German Claims Data
Marlies Onken
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Onland-Moret, N. Charlotte

Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
(180) Sex Differences in The Number and Type of Adverse Drug Reactions Reported for Common Cardiovascular Medications in a Cardiac Outpatient Population
N. Charlotte Onland-Moret
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Onukwugha, Eberechukwu

Department of Pharmaceutical Health Services Research, University of Maryland School of Pharmacy, Baltimore MD, USA
(301) Buprenorphine and Tramadol Prescriptions in Major Depressive Disorder Settings
Eberechukwu Onukwugha
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Oosterhuis, Ingrid

Netherlands Pharmacovigilance Centre Lareb, 's-Hertogenbosch, The Netherlands
(181) Safety Surveillance for COVID-19 Vaccines at The National Pharmacovigilance Centre Lareb
Ingrid Oosterhuis
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Opanga, Sylvia

University of Nairobi
(117) Development and Validation of a Virtual Reporting Tool for Diabetic Patients' Conventional and Herbal Medicine Use and Treatment Outcomes at a National Referral Hospital in Kenya
Sylvia Opanga
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(186) Medication Errors Among Patients Admitted with Cardiovascular Disorders at The Critical Care Unit of a National Referral Hospital in Kenya
Sylvia Opanga
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(208) Impact of Immunosuppressant Therapies and Transplantation on Health- Related Quality of Life Among Renal Transplant Recipients at a National Referral Hospital in Kenya
Sylvia Opanga
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(225) Medication Related Problems Among Adult Diabetic Outpatients at a National Referral Hospital in Kenya
Sylvia Opanga
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Oreagba, Ibrahim

100
(231) Adverse Effects Following Immunization (AEFI) of COVID-19 Vaccines in Two Tertiary Health Facilities in Lagos Nigeria
Ibrahim Oreagba
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Orellana Tablas, Lourdes Abigail
(12) A Regulatory Overview of Biosimilars Across Selected Countries
Lourdes Abigail Orellana Tablas
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Orlu, Mine

UCL School of Pharmacy, University College London
(18) A Scoping Review of Drug Exposures and The Development of Parkinson's Disease
Mine Orlu
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Ortiz, Juan

Massachusetts Institute of Technology
(J) Machine Learning to Automate Data Extraction for Systematic Literature Reviews
Juan Ortiz
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Osagie, Osayande

Bwari General Hospital
(43) Baseline Study for Improving Diagnostic Stewardship at Secondary Health Care Facilities in Nigeria
Osayande Osagie
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Osborn, David

Epidemiology and Applied Clinical Research Department, Division of Psychiatry, University College London (UCL)
(29) The Impact of Antidepressant Treatment on Insulin Commencement in Type 2 Diabetes: A UK Electronic Health Record Nested Case-Control Study
David Osborn
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(125) The Impact of Polypharmacy on Restarting Antidepressant Treatment in Individuals with Comorbid Depression and Type 2 Diabetes: A UK Primary Care Cohort Study
David Osborn
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(151) Validation of Medical Code Lists for Defining Mental Health Conditions with Primary Care Data: A Mixed Qualitative and Quantitative Study
David Osborn
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(249) Exploring The Impact of Mental Health Conditions on Vaccine Uptake in High-Income Countries
David Osborn
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(Y) The Impact of Polypharmacy on Antidepressant Discontinuation in Comorbid Depression and Type 2 Diabetes: A UK Primary Care Record Cohort Study
David Osborn
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Osborne, Vicki

Jazz Pharmaceuticals
(167) Updated Core Competencies in Pharmacoepidemiology to Inform Contemporary Curricula and Training for Academia, Government, and Industry
Vicki Osborne
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Osei, Anthony

Korle-Bu Teaching Hospital
(254) COVID-19 Vaccine Hesitancy Among Health Care Workers: The Case of Pharmacy Staff of The Korle Bu Teaching Hospital
Anthony Osei
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Osenda, Desmond

Korle-Bu Teaching Hospital
(254) COVID-19 Vaccine Hesitancy Among Health Care Workers: The Case of Pharmacy Staff of The Korle Bu Teaching Hospital
Desmond Osenda
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Oshagbemi, Femi

Novartis Pharma AG
(57) Retrospective Study Estimating the Incidence of Acute Alcoholic Hepatitis in the United Kingdom
Femi Oshagbemi
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Oskuie, Paria

Health Policy Research Center, Institute of Heath, Shiraz University of Medical Sciences, Shiraz, Iran.
(81) A Pharmacoepidemiologic Study of Antibiotics Prescription Patterns in a Tertiary Care Hospital
Paria Oskuie
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Osler, Merete
(20) Treatment‑Resistant Depression and Labor Market Affiliation in The Danish Welfare Society: A Register‑Based Study
Merete Osler
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(150) Association of Benzodiazepines, Z-Drugs, Pregabalin and Melatonin with Traffic Accidents
Merete Osler
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Osmanski, Joshua

Vanderbilt University Medical Center
(136) Data-Driven Approaches to Improve Phenotype Sensitivity Using EHR Data
Joshua Osmanski
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Osmundson, Sarah

Department of Obstetrics and Gynecology, Vanderbilt University Medical Center
(196) Social Vulnerability and Initiation of Pharmacotherapy for Gestational Diabetes in a Medicaid Population
Sarah Osmundson
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Osterhout, James

U.S. Food and Drug Administration
(103) Switching Patterns of Mixed Amphetamine Salt Products in the FDA's Sentinel Distributed Database
James Osterhout
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O'Sullivan, Dylan

Oncology Outcomes Initiative, University of Calgary; Department of Oncology, University of Calgary
(204) Treatment Outcomes for Advanced and Recurrent Endometrial Cancer Following Platinum-Based Chemotherapy in Canada
Dylan O'Sullivan
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Ou, Amy

Chicago State University
(60) Optimizing Monitoring Frequency for Clozapine Patients Across the Department of Veterans Affairs Health System
Amy Ou
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Oudenhuijzen, Martine

AstraZeneca
(222) Cardiovascular and Renal Complications Among Patients with Chronic Kidney Disease (CKD) in the Netherlands
Martine Oudenhuijzen
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Oudenhuijzen-Taanman, Martine

AstraZeneca
(222) Cardiovascular and Renal Complications Among Patients with Chronic Kidney Disease (CKD) in the Netherlands
Martine Oudenhuijzen-Taanman
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Ou, Huang-Tz

Institute of Clinical Pharmacy and Pharmaceutical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
(66) Restricted Mean Survival Time for Analysis of Real-World Cardiovascular Effect Associated with SGLT2 Inhibitor Use: A Population-Based Study
Huang-Tz Ou
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Ourhaan, Natalie

University of Florida College of Pharmacy
(199) The Care Cascade of Hepatitis C Virus in The Direct-Acting Antiviral Era: A Systematic Review and Meta-Analysis
Natalie Ourhaan
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Ouwens, Mario

Medical Evidence, BioPharmaceuticals Medical, AstraZeneca, Gothenburg, Sweden
(191) Statistical Evaluation of Surrogate Endpoints to Optimise Trial Design and Speed Up Decision Making Through the Use of Early Outcomes: A Case Study Using Observational Patient-Level Data
Mario Ouwens
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(251) Methodological Considerations for Matching Algorithms in Cohort Studies of COVID-19 Vaccine Effectiveness
Mario Ouwens
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Overbeek, Jetty

PHARMO Institute
(8) Brodalumab Assessment of Hazards: A Multinational Safety (BRAHMS) Study of a Biological Anti-Psoriatic Drug Across Six European Countries
Jetty Overbeek
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(26) Type 2 Diabetes, The Epidemic: Trends in Prevalence, Treatment and Risk-Factor Control, 2004-2020
Jetty Overbeek
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(84) Comparing Diabetes Care Outcomes of The Centrally Organized Hoorn Diabetes Care System with Regular Care by General Practitioners in the Netherlands
Jetty Overbeek
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(150) Identification of Frail Older Adults Using Routine Primary Care Data: Accuracy of Four Electronically Derived Algorithms
Jetty Overbeek
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(152) Representativeness of the PHARMO Electronic Health Records (EHRs) from Primary Care
Jetty Overbeek
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(222) Cardiovascular and Renal Complications Among Patients with Chronic Kidney Disease (CKD) in the Netherlands
Jetty Overbeek
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(AP) Cohort Monitoring of 29 Adverse Events of Special Interest Prior to and After COVID-19 Vaccination in Four Large European Data Sources
Jetty Overbeek
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Overgaard-Steensen, Christian

Department of Intensive Care 4131, Rigshospitalet, 2100 Copenhagen, Denmark.
(87) Impact of Implementing a Guide on Intravenous Fluids to Minimise the Risk of Hospital-Acquired Hyponatraemia in Denmark
Christian Overgaard-Steensen
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