W. A. Azazi, N. A. Aghbari, and S. A. Aghbari, “Clinical profile of admitted children with bronchiolitis at Al-Sadaka teaching hospital, Aden (January-December 2014)”, Univ. Aden J. Nat. and Appl. Sc., vol. 20, no. 1, pp. 203–211, Apr. 2016.