1. Division of Gastroenterology, Department of Medicine, University of California San Diego, La Jolla, CA, USA
2. Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
3. Center for Outcomes Research and Evaluation, Yale New Haven Hospital, New Haven, CT, USA
4. Division of Biomedical Informatics, Department of Medicine, University of California San Diego, La Jolla, CA, USA