1. Cancer risks and the contraceptive pill: what is the evidence after nearly 25 years of use?;Khoo;Med J Aust,1986
2. Oral contraceptives and vascular disease;Sartwell;Epidemiol Rev,1982
3. Drug use in the United States in 1981;Baum;JAMA,1984
4. Simultaneous use of rifampicin and other antituberculous agents with oral contraceptives;Reimers;Prax Klin Pneumol,1971
5. Drug interactions with oral contraceptives;D'Arcy;Drug Intell Clin Pharm,1986