REFERENCES
- Glasier A. Emergency postcoital contraception. N Engl J Med 1997;337:1058–79
- Task Force on Postovulatory Methods of Fertility Reg- ulation. Randomised controlled trial of levonorgestrel versus the Yuzpe regimen of combined oral contracep- tives for emergency contraception. Lancet 1998;352:428–33
- Consensus statement on emergency contraception. Contraception 1995;52:211–13
- Kosunen E, Sihvo S, Hemminki E. Knowledge and use of hormonal emergency contraception in Finland. Contraception 1997;55:153–7
- Virjo I, Kirkkola A-L, Isokoski M, Mattila K. Use and knowledge of hormonal emergency contraception. Adv Contracept 1999;15:85–94
- Haspels AA. Emergency contraception: a review. Contraception 1994;50:101–8
- Kubba AA. Hormonal postcoital contraception. Eur J Contracept Reprod Health Care 1997;2:101–4
- Kunttu K, Huttunen T. Student Health Survey 2000: a National Survey among Finnish University Students. Social security and health reports 45. Helsinki: The Social Insurance Institution, Finland, 2001: 217
- Liying Z, Bilian Z. Emergency contraception with Multiload Cu-375 SL IUD: a multicenter trial. Contraception 2001;64:107–12
- Blanchard K, Haskell S, Ferden S, et al. Differences between emergency contraception users in the United States and the United Kingdom. J Am Med Womens Assoc 2002;57:200–3
- Boldsen LL, Jeune B, Madsen PC. Aspects of comfort and safety of condom. A study of two thousand inter- courses among volunteer couples. Scand J Soc Med 1992;20:247–52
- Sparrow MJ, Lavill K. Breakage and slippage of condoms in family planning clients. Contraception 1994;50:117–29
- Warner DL, Boles J, Goldsmith J, Hatcher RA. Disclosure of condom breakage to sexual partners. J Am Med Assoc 1997;278:291–2
- Spruyt A, Steiner MJ, Joanis C, et al. Identifying condom users at risk for breakage and slippage: findings from three international sites. Am J Public Heatlh 1998; 88:239–44