1. Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
2. Section of Gastroenterology and Hepatology, Baylor College of Medicine, Houston, TX 77030, USA
3. Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX 77030, USA
4. Texas Children’s Hospital, Houston, TX 77030, USA
5. Department of Clinical Science, University of Bergen, 5020 Bergen, Norway
6. Department of Pediatrics, Haukeland University Hospital, 5021 Bergen, Norway
7. Department of Clinical Medicine, University of Bergen, 5020 Bergen, Norway
8. Section of Pediatric Gastroenterology, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA
9. USDA/ARS Children’s Nutrition Research Center, Houston, TX 77030, USA