RT Journal Article SR Electronic T1 The Fertility Regulation Group of the Cochrane Collaboration JF Journal of Family Planning and Reproductive Health Care JO J Fam Plann Reprod Health Care FD British Medical Journal Publishing Group SP 202 OP 203 DO 10.1136/jfprhc-2012-100396 VO 38 IS 3 A1 Susan Quilliam YR 2012 UL http://jfprhc.bmj.com/content/38/3/202.abstract AB