RT Journal Article SR Electronic T1 MSSVD Annual Report JF The British Journal of Venereal Diseases JO Br J Vener Dis FD BMJ Publishing Group Ltd SP 398 OP 398 DO 10.1136/sti.53.6.398 VO 53 IS 6 A1 C. B. S. Schofield YR 1977 UL http://sti.bmj.com/content/53/6/398.abstract AB