1. Michigan Integrated Center for Health Analytics and Medical Prediction, Ann Arbor
2. VA Center for Clinical Management Research, VA Ann Arbor Health Care System, Ann Arbor, Michigan
3. Division of Gastroenterology and Hepatology, Department of Internal Medicine, Michigan Medicine, Ann Arbor
4. Division of Rheumatology, Department of Internal Medicine, Michigan Medicine, Ann Arbor
5. Department of Statistics, University of Michigan, Ann Arbor