I. J. Umuago, I. P. Obiebi, G. U. Eze, and N. S. Moeteke, “Improving primary health care workers’ knowledge of cervical cancer and visual inspection screening techniques through competency-based training: prospects for expanding coverage in developing countries”, Int J Community Med Public Health, vol. 7, no. 5, pp. 1637–1644, Apr. 2020.