RT Journal Article SR Electronic T1 Why we like clinical guidelines JF Sexually Transmitted Infections JO Sex Transm Infect FD BMJ Publishing Group Ltd SP 239 OP 239 DO 10.1136/sextrans-2012-050533 VO 88 IS 4 A1 FitzGerald, Mark A1 Kingston, Margaret A A1 BASHH Clinical Effectiveness Group YR 2012 UL http://sti.bmj.com/content/88/4/239.abstract AB