Research
Cancer risk among users of oral contraceptives: cohort data from the Royal College of General Practitioner's oral contraception study
BMJ 2007; doi: https://doi.org/10.1136/bmj.39289.649410.55 (Published 11 September 2007) Cite this as: BMJ 2007;:bmj;bmj.39289.649410.55v1
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