1. Pediatric Endocrinology, Stanford University School of Medicine, Stanford, CA, USA
2. Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
3. Stanford Children’s Inflammatory Bowel Disease Center, Stanford University School of Medicine, Palo Alto, CA, USA
4. Department of Pediatrics, Stanford University School of Medicine, Palo Alto, CA, USA
5. Division of Gastroenterology & Hepatology, Stanford University School of Medicine, Palo Alto, CA, USA