PT - JOURNAL ARTICLE AU - Willcox, R. R. TI - The Evolutionary Cycle of the Treponematoses AID - 10.1136/sti.36.2.78 DP - 1960 Jun 01 TA - The British Journal of Venereal Diseases PG - 78--91 VI - 36 IP - 2 4099 - http://sti.bmj.com/content/36/2/78.short 4100 - http://sti.bmj.com/content/36/2/78.full SO - Br J Vener Dis1960 Jun 01; 36