., B., Ranjan, M., D.A., N. and Shekhar, C. 2016. Determinants and differentials of postpartum amenorrhea associated with breastfeeding among women in Bihar, India. International Journal of Reproduction, Contraception, Obstetrics and Gynecology. 5, 1 (Dec. 2016), 154–165. DOI:https://doi.org/10.18203/2320-1770.ijrcog20151617.