Al janabi, Muhi, Ban Al hashimi, and Alhan sultan. “Pneumonia in Childern Admitted With Lower Respiratory Tract Infections. A Hospital Based Study”. Journal of the Faculty of Medicine Baghdad 54, no. 4 (January 2, 2013): 294-299. Accessed December 2, 2019. http://iqjmc.uobaghdad.edu.iq/index.php/19JFacMedBaghdad36/article/view/711.