Oral Contraceptives & Cancer Risk: Questions & Answers (2018). National Cancer Institute Member Services.
Citazione stile Chigago Style (17a edizione)Oral Contraceptives & Cancer Risk: Questions & Answers (2018). National Cancer Institute Member Services.
Citatione MLA (9a ed.)Oral Contraceptives & Cancer Risk: Questions & Answers (2018). National Cancer Institute Member Services.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.