1. From the Department of Medicine and Center for Esophageal Diseases, Baylor University Medical Center at Dallas, Baylor Scott & White Health, and the Department of Medicine, Veterans Affairs (VA) North Texas Health Care System (S.J.S., R.F.S.), and the Departments of Medicine (K.B.D.), Surgery (T.H.P.), and Pathology (S.D.M.), VA North Texas Health Care System and University of Texas Southwestern Medical Center, Dallas, and the Department of Pathology, Baylor College of Medicine, Houston (R.M.G.); the...