Affiliation: | 1. Division of Gastroenterology, Department of Pediatrics, Stony Brook University School of Medicine, Stony Brook, New York;2. Division of Infectious Diseases, Department of Pediatrics, Stony Brook University School of Medicine, Stony Brook, New York;3. Division of Gastroenterology, Department of Internal Medicine, Stony Brook University School of Medicine, Stony Brook, New York;4. Department of Molecular Genetics and Microbiology, Stony Brook University, Stony Brook, New York |