1. Children Hospital, Pakistan Institute of Medical Sciences, Islamabad, Islamabad, Pakistan
2. Department of Diagnostic Radiology, Pakistan Institute of Medical Sciences, Islamabad, Islamabad, Pakistan
3. Pakistan Institute of Medical Sciences & Rawalpindi Medical College, Islamabad, Islamabad, Pakistan
4. Atta ur Rahman School of Applied Biosciences, National University of Sciences and Technology, Islamabad, Islamabad, Pakistan