Affiliations

• ¹ Division of Pediatric Gastroenterology, Hepatology, and Nutrition, The Children's Hospital of Philadelphia, Philadelphia, PA; Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA. Electronic address: Conradm@chop.edu.
• ² Division of Pediatric Gastroenterology, Hepatology, and Nutrition, The Children's Hospital of Philadelphia, Philadelphia, PA; Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA.
• ³ Division of Pediatric Gastroenterology, Children's Hospital of Los Angeles, and Department of Pediatrics, Keck School of Medicine at the University of Southern California, Los Angeles, CA.
• ⁴ Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN; Division of Pediatric Gastroenterology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN.
• ⁵ National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD; Department of Pediatrics, Inova Fairfax Hospital, Falls Church, VA.
• ⁶ Inflammatory Bowel Disease Center, Boston Children's Hospital, Boston, MA; Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Boston Children's Hospital, Boston, MA.