RT Journal Article SR Electronic T1 M.S.S.V.D JF The British Journal of Venereal Diseases JO Br J Vener Dis FD BMJ Publishing Group Ltd SP 213 OP 213 DO 10.1136/sti.39.4.213 VO 39 IS 4 A1 R.F. YR 1963 UL http://sti.bmj.com/content/39/4/213.abstract AB