Hameed, Numan Nafie, and Nife Rajab Mahmood. “Respiratory Distress Syndrome in Neonatal Care Units in Medical City”. Journal of the Faculty of Medicine Baghdad 49, no. 4 (January 1, 2008): 378-385. Accessed November 30, 2019. http://iqjmc.uobaghdad.edu.iq/index.php/19JFacMedBaghdad36/article/view/1327.