PT - JOURNAL ARTICLE AU - A Campbell TI - Letter: Effect on incubating syphilis of penicillin treatment for gonorrhoea. AID - 10.1136/sti.50.3.239 DP - 1974 Jun 01 TA - The British Journal of Venereal Diseases PG - 239--240 VI - 50 IP - 3 4099 - http://sti.bmj.com/content/50/3/239.short 4100 - http://sti.bmj.com/content/50/3/239.full SO - Br J Vener Dis1974 Jun 01; 50