TY - JOUR T1 - Bulletin of the I.U.V.D.T JF - The British Journal of Venereal Diseases JO - Br J Vener Dis SP - 164 LP - 170 DO - 10.1136/sti.46.2.164 VL - 46 IS - 2 A2 - , Y1 - 1970/04/01 UR - http://sti.bmj.com/content/46/2/164.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -