Affiliation: | 1.Department of Radiology, Al-Wakra Hospital, Hamad Medical Corporation, PO Box: 82228, Doha, Qatar ;2.Department of Radiology, Weil Cornell Medical College, Doha, Qatar ;3.Department of Radiology, Columbia Asia Referral Hospital, Yeshwanthpur, India ;4.Department of Radiology and Surgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, 19104, USA ; |