Ebughe, G. A., I. A. Ekanem, O. E. Omoronyia, M. A. Nnoli, E. E. Ikpi, and T. I. Ugbem. “Prostate Cancer Incidence in Calabar - Nigeria”. Journal of Advances in Medicine and Medical Research, Vol. 14, no. 5, Mar. 2016, pp. 1-10, doi:10.9734/BJMMR/2016/23503.