RT Journal Article SR Electronic T1 DISCUSSION OF THE SIX PRECEDING ARTICLES JF The British Journal of Venereal Diseases JO Br J Vener Dis FD BMJ Publishing Group Ltd SP 99 OP 100 DO 10.1136/sti.35.2.99 VO 35 IS 2 YR 1959 UL http://sti.bmj.com/content/35/2/99.abstract AB