PT - JOURNAL ARTICLE ED - , TI - Abstracts AID - 10.1136/sti.29.1.41 DP - 1953 Mar 01 TA - The British Journal of Venereal Diseases PG - 41--56 VI - 29 IP - 1 4099 - http://sti.bmj.com/content/29/1/41.short 4100 - http://sti.bmj.com/content/29/1/41.full SO - Br J Vener Dis1953 Mar 01; 29