RT Journal Article SR Electronic T1 Pre-exposure prophylaxis: making history JF Sexually Transmitted Infections JO Sex Transm Infect FD BMJ Publishing Group Ltd SP 7 OP 7 DO 10.1136/sextrans-2016-053059 VO 93 IS 1 A1 Mags Portman YR 2017 UL http://sti.bmj.com/content/93/1/7.abstract AB