RT Journal Article SR Electronic T1 The morning after pill as an ‘easy’ option: the implication for STIs JF Sexually Transmitted Infections JO Sex Transm Infect FD BMJ Publishing Group Ltd SP 155 OP 155 DO 10.1136/sextrans-2012-050782 VO 89 IS 2 A1 Frances Shiely YR 2013 UL http://sti.bmj.com/content/89/2/155.abstract AB