Vessey MP، Lawless M (ديسمبر 1984). "The Oxford-Family Planning Association contraceptive study". Clinics in Obstetrics and Gynaecology. ج. 11 ع. 3: 743–57. DOI:10.1016/S0306-3356(21)00625-7. PMID:6509857.
Dinger J، Do Minh T، Heinemann K (أكتوبر 2016). "Impact of estrogen type on cardiovascular safety of combined oral contraceptives". Contraception. ج. 94 ع. 4: 328–39. DOI:10.1016/j.contraception.2016.06.010. PMID:27343748.
Grandi G، Facchinetti F، Bitzer J (فبراير 2022). "Confirmation of the safety of combined oral contraceptives containing oestradiol on the risk of venous thromboembolism". Eur J Contracept Reprod Health Care. ج. 27 ع. 2: 83–84. DOI:10.1080/13625187.2022.2029397. PMID:35133236. S2CID:246651102.
Benagiano, G., & Merialdi, M. (2011). Carl Djerassi and the World Health Organisation special programme of research in human reproduction. Journal für Reproduktionsmedizin und Endokrinologie-Journal of Reproductive Medicine and Endocrinology, 8(1), 10-13. http://www.kup.at/kup/pdf/10163.pdfنسخة محفوظة 2023-01-30 على موقع واي باك مشين.
Vessey MP، Lawless M (ديسمبر 1984). "The Oxford-Family Planning Association contraceptive study". Clinics in Obstetrics and Gynaecology. ج. 11 ع. 3: 743–57. DOI:10.1016/S0306-3356(21)00625-7. PMID:6509857.
Ramcharan S، Pellegrin FA، Ray RM، Hsu JP (ديسمبر 1980). "The Walnut Creek Contraceptive Drug Study. A prospective study of the side effects of oral contraceptives. Volume III, an interim report: A comparison of disease occurrence leading to hospitalization or death in users and nonusers of oral contraceptives". J Reprod Med. ج. 25 ع. 6 Suppl: 345–72. PMID:7205804.
Dinger J، Do Minh T، Heinemann K (أكتوبر 2016). "Impact of estrogen type on cardiovascular safety of combined oral contraceptives". Contraception. ج. 94 ع. 4: 328–39. DOI:10.1016/j.contraception.2016.06.010. PMID:27343748.
Grandi G، Facchinetti F، Bitzer J (فبراير 2022). "Confirmation of the safety of combined oral contraceptives containing oestradiol on the risk of venous thromboembolism". Eur J Contracept Reprod Health Care. ج. 27 ع. 2: 83–84. DOI:10.1080/13625187.2022.2029397. PMID:35133236. S2CID:246651102.
Grandi G، Facchinetti F، Bitzer J (فبراير 2022). "Confirmation of the safety of combined oral contraceptives containing oestradiol on the risk of venous thromboembolism". Eur J Contracept Reprod Health Care. ج. 27 ع. 2: 83–84. DOI:10.1080/13625187.2022.2029397. PMID:35133236. S2CID:246651102.
Benagiano, G., & Merialdi, M. (2011). Carl Djerassi and the World Health Organisation special programme of research in human reproduction. Journal für Reproduktionsmedizin und Endokrinologie-Journal of Reproductive Medicine and Endocrinology, 8(1), 10-13. http://www.kup.at/kup/pdf/10163.pdfنسخة محفوظة 2023-01-30 على موقع واي باك مشين.