S. A. Anzaku, E. A. Ogbe, G. I. Ogbu, B. E. Edem, and S. D. Ngwan, “Evaluation of changes in sexual response and factors influencing sexuality during pregnancy among Nigerian women in Jos, Nigeria”, Int J Reprod Contracept Obstet Gynecol, vol. 5, no. 10, pp. 3576–3582, Dec. 2016.