APA (7th ed.) Citation

Fitzpatrick, D., Pirie, K., Reeves, G., Green, J., & Beral, V. Combined and progestagen-only hormonal contraceptives and breast cancer risk: A UK nested case-control study and meta-analysis. Public Library of Science (PLoS).

Chicago Style (17th ed.) Citation

Fitzpatrick, Danielle, Kirstin Pirie, Gillian Reeves, Jane Green, and Valerie Beral. Combined and Progestagen-only Hormonal Contraceptives and Breast Cancer Risk: A UK Nested Case-control Study and Meta-analysis. Public Library of Science (PLoS).

MLA (9th ed.) Citation

Fitzpatrick, Danielle, et al. Combined and Progestagen-only Hormonal Contraceptives and Breast Cancer Risk: A UK Nested Case-control Study and Meta-analysis. Public Library of Science (PLoS).