R. O. Shittu, B. A. Issa, G. T. Olanrewaju, A. O. Mahmoud, L. O. Odeigah, and A. G. Sule, “Social Determinants of Depression: Social Cohesion, Negative Life Events, and Depression Among People Living with HIV/Aids in Nigeria, West Africa”, Int J MCH AIDS, vol. 2, no. 2, pp. 174–181, Nov. 2015.