PT - JOURNAL ARTICLE ED - , TI - Primary and secondary syphilis. Country of origin study, 1965. AID - 10.1136/sti.43.2.89 DP - 1967 Jun 01 TA - The British Journal of Venereal Diseases PG - 89--95 VI - 43 IP - 2 4099 - http://sti.bmj.com/content/43/2/89.short 4100 - http://sti.bmj.com/content/43/2/89.full SO - Br J Vener Dis1967 Jun 01; 43