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Exposure to combined oral contraceptives and risk of venous thromboembolism: a protocol for nested case–control studies using the QResearch and the CPRD databases

INTRODUCTION: Many studies have found an increased risk of venous thromboembolism (VTE) associated with the use of combined hormonal contraceptives, but various methodologies have been used in the study design relating to definition of VTE event and the selection of appropriate cases for analysis. T...

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Detalles Bibliográficos
Autores principales:	Vinogradova, Yana, Coupland, Carol, Hippisley-Cox, Julia
Formato:	Online Artículo Texto
Lenguaje:	English
Publicado:	BMJ Publishing Group 2014
Materias:	Epidemiology
Acceso en línea:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3987715/ https://www.ncbi.nlm.nih.gov/pubmed/24713217 http://dx.doi.org/10.1136/bmjopen-2013-004499

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