RT Journal Article SR Electronic T1 The CROWN Initiative: journal editors invite researchers to develop core outcomes in women's health JF Journal of Family Planning and Reproductive Health Care JO J Fam Plann Reprod Health Care FD British Medical Journal Publishing Group SP 239 OP 240 DO 10.1136/jfprhc-2014-101075 VO 40 IS 4 A1 Khalid Khan YR 2014 UL http://jfprhc.bmj.com/content/40/4/239.abstract AB