RT Journal Article SR Electronic T1 Atlas of Vulvar Disease JF Genitourinary Medicine JO Genitourin Med FD BMJ Publishing Group Ltd SP 310 OP 310 DO 10.1136/sti.72.4.310-a VO 72 IS 4 A1 Chris Sonnex YR 1996 UL http://sti.bmj.com/content/72/4/310.2.abstract AB