1. Enteric NeuroScience Program, Mayo Clinic College of Medicine, Rochester, Minnesota;
2. Gastroenterology and Hepatology, Mayo Clinic College of Medicine, Rochester, Minnesota;
3. Division of Gastroenterology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; and
4. Department of Colon and Rectal Surgery, Mayo Clinic College of Medicine, Rochester, Minnesota;
5. The Dorothy M. Davis Heart and Lung Research Institute and Departments of Internal Medicine and Physiology & Cell Biology, The Ohio State University Wexner Medical Center, Columbus, Ohio