RT Journal Article SR Electronic T1 Fifty Shades of a phenomenon JF Journal of Family Planning and Reproductive Health Care JO J Fam Plann Reprod Health Care FD British Medical Journal Publishing Group SP 55 OP 57 DO 10.1136/jfprhc-2012-100546 VO 39 IS 1 A1 Susan Quilliam YR 2013 UL http://jfprhc.bmj.com/content/39/1/55.abstract AB