Institution: | 1. Department of Epidemiology and Prevention, Wake Forest University Public Health Sciences, Winston-Salem, NC;2. Division of Gastroenterology and Hepatology, Department of Medicine, University of North Carolina School of Medicine, Chapel Hill, NC;5. Center for Esophageal Diseases and Swallowing, University of North Carolina School of Medicine, Chapel Hill, NC;3. Division of Allergy and Immunology, Cincinnati Children''s Hospital Medical Center, and the Department of Pediatrics, University of Cincinnati School of Medicine, Cincinnati, Ohio;4. Division of Genetics, University of Cincinnati School of Medicine, Cincinnati, Ohio |