RT Journal Article SR Electronic T1 Sexually Transmitted Diseases, Vaccines, Prevention and Control. JF Sexually Transmitted Infections JO Sex Transm Infect FD BMJ Publishing Group Ltd SP 394 OP 395 DO 10.1136/sti.77.5.394-a VO 77 IS 5 A1 Nandwani, Rak YR 2001 UL http://sti.bmj.com/content/77/5/394.2.abstract AB