TY - JOUR T1 - Abstracts JF - The British Journal of Venereal Diseases JO - Br J Vener Dis SP - 256 LP - 264 DO - 10.1136/sti.45.3.256 VL - 45 IS - 3 A2 - , Y1 - 1969/09/01 UR - http://sti.bmj.com/content/45/3/256.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -