Cita APA

Hannaford, P. C., Selvaraj, S., Elliott, A. M., Angus, V., Iversen, L., & Lee, A. J. (2007). Cancer risk among users of oral contraceptives: Cohort data from the Royal College of General Practitioner's oral contraception study. BMJ Publishing Group Ltd.

Citación estilo Chicago

Hannaford, Philip C., Sivasubramaniam Selvaraj, Alison M. Elliott, Valerie Angus, Lisa Iversen, y Amanda J. Lee. Cancer Risk Among Users of Oral Contraceptives: Cohort Data From the Royal College of General Practitioner's Oral Contraception Study. BMJ Publishing Group Ltd, 2007.

Cita MLA

Hannaford, Philip C., et al. Cancer Risk Among Users of Oral Contraceptives: Cohort Data From the Royal College of General Practitioner's Oral Contraception Study. BMJ Publishing Group Ltd, 2007.