Dr. Abqari Shaad, Dr. Kamran Mirza M, Dr. Alam Shahzad, Dr. Haseen Azam, Dr. Shamim Gauhar, and Dr. Izhar fazil M. 2019. “Transcatheter Closure of Patent Ductus Arteriosus in Children Weighing 5 Kg or Less: Initial Experienc”. Pediatric Review: International Journal of Pediatric Research 6 (5), 246-51. https://doi.org/10.17511/ijpr.2019.i05.09.