1. Postcoital contraception;Rowlands, S.; Guillebaud, J.;British Journal of Family Planning,1981
2. Behavioural patterns in women requesting postcoital contraception;Rowlands, S.; Booth, M.; Guillebaud, J.;J Biosoc Sci
3. Morning after pill;Weenink, G.H.; Ten Cate, J.W.; Kahle, L.H.; Lamping, R.J.; Treffers, P.E.;and antithrombin III. Lancet,1981
4. Ethinylestradiol and dl-norgestrel as a postcoital contraceptive;Yuzpe, A.A.; Lancee, W.J.,1977
5. Postcoital contraception using dl-norgestrel/ethinylestradiol combination;Smith, R.P.; Ross, A.;Contraception,1978