Letters Combined oral contraceptives and venous thromboembolism New study supports MHRA advice on combined oral contraceptives BMJ 2015; 350 doi: https://doi.org/10.1136/bmj.h3305 (Published 24 June 2015) Cite this as: BMJ 2015;350:h3305 Article Related content Metrics Responses Peer review Related articles Research Use of combined oral contraceptives and risk of venous thromboembolism: nested case-control studies using the QResearch and CPRD databases Published: 26 May 2015; BMJ 350 doi:10.1136/bmj.h2135
