Hassan, A. A., Taha, Z., Abdulla, M. A., Ali, A. A. and Adam, I. (2020) “Causes and Risk Factors of Hospitalization among Under-five Children in Kassala, Eastern Sudan”, Open Access Macedonian Journal of Medical Sciences, 8(E), pp. 451–457. doi: 10.3889/oamjms.2020.4958.