Livinus Egwuda, Etukumana Etiobong Akpan, and Terhemen Joseph Igbudu. “ Nigeria”. Asian Pacific Journal of Health Sciences 2, no. 3 (September 30, 2015): 94–101. Accessed April 11, 2026. https://www.apjhs.com/index.php/apjhs/article/view/945.