PT - JOURNAL ARTICLE AU - Angie Wade TI - Study size AID - 10.1136/sti.77.5.332 DP - 2001 Oct 01 TA - Sexually Transmitted Infections PG - 332--334 VI - 77 IP - 5 4099 - http://sti.bmj.com/content/77/5/332.short 4100 - http://sti.bmj.com/content/77/5/332.full SO - Sex Transm Infect2001 Oct 01; 77