Fonseca, M., Deshmukh, P.Y. and Kharat, D. 2017. Progesterone only pills: an effective contraceptive option for lactating women. International Journal of Reproduction, Contraception, Obstetrics and Gynecology. 6, 10 (Sep. 2017), 4399–4401. DOI:https://doi.org/10.18203/2320-1770.ijrcog20174412.