1. Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City
2. Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, Minnesota3Division of Preventive Medicine, Mayo Clinic, Rochester, Minnesota
3. Division of Gastroenterology and Liver Diseases, Case Western Reserve University, Cleveland, Ohio
4. Division of Gastroenterology, University of California, San Diego, La Jolla
5. Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, Minnesota
6. Department of Library Services, Mayo Clinic, Rochester, Minnesota
7. Clinical Enteric Neuroscience Translational and Epidemiological Research (CENTER), Mayo Clinic, Rochester, Minnesota
8. Division of Gastroenterology, University of California, San Diego, La Jolla8Division of Biomedical Informatics, University of California, San Diego, La Jolla