1. Contraceptive use in Canada, 1984;Balakrishnan;Farn Plann Perspect,1985
2. The Canadian Contraception Study;Boroditsky;J Soc Obstet Gynaecol Can,1995
3. The 1995 Canadian Contraceptive Study;Boroditsky;J Soc Obstet Gynaecol Can,1996
4. Contraceptive discontinuation among married women in the United States;Grady;Stud Farn Plann,1988
5. Oral contraceptive pill use after an initial visit to a family planning clinic;Oakley;Farn Plann Perspect,1991