PT - JOURNAL ARTICLE ED - BMJ Publishing Group Ltd TI - Abstracts AID - 10.1136/sti.53.2.148 DP - 1977 Apr 01 TA - The British Journal of Venereal Diseases PG - 148--153 VI - 53 IP - 2 4099 - http://sti.bmj.com/content/53/2/148.short 4100 - http://sti.bmj.com/content/53/2/148.full SO - Br J Vener Dis1977 Apr 01; 53