PT - JOURNAL ARTICLE AU - G C Cardy TI - Failed emergency contraception. DP - 1994 Sep 01 TA - British Journal of General Practice PG - 428--428 VI - 44 IP - 386 4099 - http://bjgp.org/content/44/386/428.3.short 4100 - http://bjgp.org/content/44/386/428.3.full SO - Br J Gen Pract1994 Sep 01; 44