Abasiattai, A. M., O. Olatunbosun, and M. N. Edubio. “Awareness and Desirability of Antenatal Attendees about Analgesia During Childbirth in a University Teaching Hospital in Southern Nigeria”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 5, no. 5, Jan. 2017, pp. 1540-4, doi:10.18203/2320-1770.ijrcog20161320.