RT Journal Article SR Electronic T1 Correction JF Sexually Transmitted Infections JO Sex Transm Infect FD BMJ Publishing Group Ltd SP 250 OP 250 DO 10.1136/sti.2006.024067.corr1 VO 84 IS 3 YR 2008 UL http://sti.bmj.com/content/84/3/250.3.abstract AB