Ezenwa, E., E. Ibadin, E. Obarisiagbon, J. Agugbui, and E. Osaigbovon. “Urethral catheterization:The Need for Adequate Undergraduate Exposure”. African Journal of Urology, vol. 23, no. 1, Mar. 2017, pp. 52-55, doi:10.1016/j.afju.2015.10.006.