PT - JOURNAL ARTICLE ED - , TI - Abstracts AID - 10.1136/sti.48.3.219 DP - 1972 Jun 01 TA - The British Journal of Venereal Diseases PG - 219--226 VI - 48 IP - 3 4099 - http://sti.bmj.com/content/48/3/219.short 4100 - http://sti.bmj.com/content/48/3/219.full SO - Br J Vener Dis1972 Jun 01; 48