RT Journal Article SR Electronic T1 Contemporary research on sex work JF Sexually Transmitted Infections JO Sex Transm Infect FD BMJ Publishing Group Ltd SP 76 OP 76 DO 10.1136/sti.2006.023275 VO 83 IS 1 A1 Cusick, Linda YR 2007 UL http://sti.bmj.com/content/83/1/76.1.abstract AB