1[2]Farley TM,Meirik O,Collins J.Cardiovascular disease and combined oral contraceptives:reviewing the evidence and balancing the risks.Hum Reprod Update 1999;5:721-735.
3[4]Nakao A,Sakagami K,Nakata Y,et al.Multiple hepatic adenomas caused by long-term administration of androgenic steroids for aplastic anemia in association with familial adenomatous polyposis.J Gastroenterol 2000;35:557-562.