1. Division of Gastroenterology and Hepatology University of Michigan Ann Arbor Michigan USA
2. Gastroenterology Section VA Ann Arbor Healthcare System Ann Arbor Michigan USA
3. Cardiosense Inc Chicago Illinois USA
4. McCormick School of Engineering Northwestern University Chicago Illinois USA
5. Department of Anesthesia Northwestern University Feinberg School of Medicine Chicago Illinois USA
6. Division of Gastroenterology and Hepatology Northwestern University Feinberg School of Medicine Chicago Illinois USA