RT Journal Article SR Electronic T1 Microbiological techniques JF Sexually Transmitted Infections JO Sex Transm Infect FD BMJ Publishing Group Ltd SP 302 OP 302 DO 10.1136/sextrans-2016-053012 VO 93 IS 4 A1 Catherine A Ison YR 2017 UL http://sti.bmj.com/content/93/4/302.abstract AB