RT Journal Article SR Electronic T1 Infectious Diseases. JF Sexually Transmitted Infections JO Sex Transm Infect FD BMJ Publishing Group Ltd SP 223 OP 223 DO 10.1136/sti.76.3.223 VO 76 IS 3 A1 Pozniak, Anton YR 2000 UL http://sti.bmj.com/content/76/3/223.1.abstract AB