PT - JOURNAL ARTICLE AU - Colquhoun, D. B. TI - Dual Testing for the Serodiagnosis of Syphilis AID - 10.1136/sti.26.3.139 DP - 1950 Sep 01 TA - The British Journal of Venereal Diseases PG - 139--142 VI - 26 IP - 3 4099 - http://sti.bmj.com/content/26/3/139.short 4100 - http://sti.bmj.com/content/26/3/139.full SO - Br J Vener Dis1950 Sep 01; 26