1. From the Department of Radiology, NYU School of Medicine, 550 First Ave, New York, NY 10016 (S.K.K., D.H.); Department of Population Health, NYU Langone Medical Center, New York, NY (S.K.K., R.S.B.); Institute for Healthcare Delivery Science, Department of Population Health Science and Policy (B.F.), and Department of Medicine, Division of Gastroenterology (M.I.K.), Icahn School of Medicine at Mount Sinai, New York, NY; and Department of Medicine, NYU Medical Center, New York, NY (R.S.B.).