1. Stanford University School of Medicine, Department of Medicine, Division of Gastroenterology and Hepatology, Stanford, California;
2. University of Michigan Medical School, Department of Molecular and Integrative Physiology, Ann Arbor, Michigan;
3. NeuroTherapeutics Pharma, Chicago, Illinois;
4. Stanford University School of Medicine, Department of Pathology, Stanford, California; and
5. Division of Gastroenterology and Hepatology, Department of Medicine, Santa Clara Valley Medical Center, San Jose, California