A. M. Abasiattai, O. Olatunbosun, and M. N. Edubio, “Awareness and desirability of antenatal attendees about analgesia during childbirth in a university teaching hospital in southern Nigeria”, Int J Reprod Contracept Obstet Gynecol, vol. 5, no. 5, pp. 1540–1544, Jan. 2017.