Aminu, M. B., Alkali, M., Audu, B. M., Abdulrazak, T. and Bathna, D. (2020) “Prevalence of hyperemesis gravidarum and associated risk factors among pregnant women in a tertiary health facility in Northeast, Nigeria”, International Journal of Reproduction, Contraception, Obstetrics and Gynecology, 9(9), pp. 3557–3562. doi: 10.18203/2320-1770.ijrcog20203827.