1 Kenneth C. Griffin Esophageal Center, Division of Gastroenterology and Hepatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois.
2 Center for Esophageal Diseases and Swallowing, Division of Gastroenterology and Hepatology, Department of Medicine, University of North Carolina, Chapel Hill, North Carolina.
3 Division of Gastroenterology and Hepatology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania.
4 Section of Pediatric Gastroenterology, Digestive Health Institute, Children's Hospital Colorado, Mucosal Inflammation Program, University of Colorado School of Medicine, Aurora, Colorado.
5 Department of Gastroenterology, Amsterdam University Medical Centers, Amsterdam, The Netherlands.
6 Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland.
7 Division of Gastroenterology and Hepatology, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland.
8 Division of Gastroenterology, Department of Internal Medicine, University of Michigan, Ann Arbor.
9 Division of Gastroenterology. University of Utah, Salt Lake City.
10 School of Medicine and Public Health, University of Newcastle, and Hunter Medical Research Institute, Newcastle, New South Wales, Australia.
11 Department of Gastroenterology & Hepatology, University Hospital Zurich, Zurich, Switzerland.
12 Department of Gastroenterology, Hepatology, and Infectious Diseases, University Hospital Magdeburg, Germany.
13 Department of Surgery, Oncology, and Gastroenterology, University of Padua, Padua, Italy.
14 Division of Gastroenterology, Hepatology, and Nutrition, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois.
15 Section of Pediatric Gastroenterology, Hepatology and Nutrition, Children's Hospital Colorado and University of Colorado School of Medicine, Aurora, Colorado.
16 Division of Gastroenterology, Children's Hospital of Philadelphia, Department of Pediatrics, Perelman School of Medicine at University of Pennsylvania, Philadelphia.
17 Mount Sinai Center for Eosinophilic Disorders, Departments of Pediatrics and Medicine, Icahn School of Medicine at Mount Sinai, New York, New York.
18 Division of Allergy-Immunology, Children's Hospital of Philadelphia, Department of Pediatrics, Perelman School of Medicine at University of Pennsylvania, Philadelphia.
19 Section of Allergy and Immunology, Children's Hospital Colorado, Aurora.
20 Pediatric Gastroenterology and Liver Unit, Maternal and Child Health Department, University Hospital, Umberto I Sapienza University of Rome, Italy.
21 Division of Pathology and Laboratory Medicine, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio.
22 Department of Pathology, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, Illinois.
23 Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois.
24 Departments of Epidemiology and Prevention and Internal Medicine, Gastroenterology, Wake Forest University School of Medicine, Winston-Salem, North Carolina.
25 Institute of Social and Preventive Medicine, University of Bern, Switzerland.
26 Department of Biochemistry and Molecular Genetics, College of Medicine, University of Illinois, Chicago.
27 Division of Pediatric Gastroenterology, Hepatology and Nutrition, Children's of Alabama/University of Alabama, Birmingham.
28 Division of Allergy and Immunology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio.
29 Division of Gastroenterology, Columbia University Vagelos College of Physicians and Surgeons, New York, New York.
30 Department of Pathology, University of Utah, Salt Lake City.
31 Division of Allergy, Asthma, and Clinical Immunology, Department of Medicine, Mayo Clinic Arizona, Scottsdale, Arizona.
32 Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Vanderbilt University Medical Center, Nashville, Tennessee.
33 National Institutes of Allergic and Infectious Diseases, National Institutes of Health, Bethesda, Maryland.
34 Department of Health Services Research, Durham University, Durham, United Kingdom.
35 Division of Gastroenterology, Tufts University School of Medicine. Boston, Massachusetts.
36 Division of Allergy and Immunology, Departments of Pediatrics and Medicine, Rady Children's Hospital, San Diego, University of California, San Diego.
37 Department of Otorhinolaryngology & Head and Neck Surgery, NU-Hospital Group/University of Gothenburg, Sahlgrenska Academy, Goteborg, Sweden.
38 Digestive Endoscopy Unit, Division of Gastroenterology, Padua University Hospital, Padua, Italy.
39 Center for Digestive Diseases, Internal Medicine Center, and Center for Esophageal Disorders, University Hospital Eppendorf, Hamburg, Germany.
40 Division of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, Belgium.
41 Blizard Institute, Barts & The London School of Medicine and Dentistry, London, United Kingdom.
42 Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland; Department of Gastroenterology & Hepatology, University Hospital Zurich, Zurich, Switzerland; Department of Internal Medicine, GZO Zurich Regional Health Center, Wetzikon, Switzerland.
43 Division of Allergy and Immunology, Northwestern University Feinberg School of Medicine, Chicago, Illinois.