Gaffield Mary Lyn, Kiarie James
Human Reproduction Team, Department of Reproductive Health and Research, World Health Organization, CH-1211, Geneva 27, Switzerland.
Human Reproduction Team, Department of Reproductive Health and Research, World Health Organization, CH-1211, Geneva 27, Switzerland.
Contraception. 2016 Sep;94(3):193-4. doi: 10.1016/j.contraception.2016.07.001.