Research
Use of combined oral contraceptives and risk of venous thromboembolism: nested case-control studies using the QResearch and CPRD databases
BMJ 2015; 350 doi: https://doi.org/10.1136/bmj.h2135 (Published 26 May 2015) Cite this as: BMJ 2015;350:h2135Data supplement
Web Extra
Extra material supplied by the author
- Data Supplement - Web appendix 1: Supplementary tables
- Data Supplement - Web appendix 2: READ codes of conditions affecting venous thromboembolism
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