RT Journal Article SR Electronic T1 Human Reproduction and Venereal Disease JF The British Journal of Venereal Diseases JO Br J Vener Dis FD BMJ Publishing Group Ltd SP 137 OP 137 DO 10.1136/sti.21.3.137 VO 21 IS 3 A1 M. M. S., YR 1945 UL http://sti.bmj.com/content/21/3/137.1.abstract AB