RT Journal Article SR Electronic T1 Contraception Today (8th edn) JF Journal of Family Planning and Reproductive Health Care JO J Fam Plann Reprod Health Care FD British Medical Journal Publishing Group SP jfprhc-2017-101763 DO 10.1136/jfprhc-2017-101763 A1 Shamela de Silva YR 2017 UL http://jfprhc.bmj.com/content/early/2017/03/07/jfprhc-2017-101763.abstract AB