Gulbin Shahid ,Mahmood Jamal , Yasir Bin Nisar. “Risk Factors of Subependymal Hemorrhage-Intraventricular Haemorrhage in Preterm Infants”. Journal of Rawalpindi Medical College, vol. 21, no. 1, Mar. 2017, https://www.journalrmc.com/index.php/JRMC/article/view/98.