TY - JOUR T1 - Correction JF - The British Journal of Venereal Diseases JO - Br J Vener Dis SP - 66 LP - 66 DO - 10.1136/sti.47.1.66 VL - 47 IS - 1 A2 - , Y1 - 1971/02/01 UR - http://sti.bmj.com/content/47/1/66.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -