1. Center for Quality of Care Research, Baystate Medical Center, Springfield, Massachusetts2Division of General Medicine, Baystate Medical Center, Springfield, Massachusetts3Tufts University School of Medicine, Boston, Massachusetts
2. Section of General Internal Medicine and the Robert Wood Johnson Clinical Scholars Program, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut5Center for Outcomes Research and Evaluation, Yale–New Haven Hospital, N
3. Center for Quality of Care Research, Baystate Medical Center, Springfield, Massachusetts6School of Public Health and Health Sciences, University of Massachusetts, Amherst
4. Center for Quality of Care Research, Baystate Medical Center, Springfield, Massachusetts
5. Department of Medicine, Medicine Institute, Cleveland Clinic, Cleveland, Ohio