RT Journal Article SR Electronic T1 The vulva JF Genitourinary Medicine JO Genitourin Med FD BMJ Publishing Group Ltd SP 350 OP 351 DO 10.1136/sti.65.5.350-b VO 65 IS 5 A1 Munday, P E YR 1989 UL http://sti.bmj.com/content/65/5/350.3.abstract AB