1. College of Health and Human Sciences, Purdue University, West Lafayette, Indiana;
2. Center for Outcomes Research and Evaluation, Yale-New Haven Hospital, New Haven, Connecticut;
3. Section of Endocrinology, and
4. Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut;
5. Department of Internal Medicine, Richard L. Roudenbush VA Medical Center, Indianapolis, Indiana;
6. Indiana University School of Medicine, Indianapolis, Indiana;
7. Section of Pulmonary, Critical Care, and Sleep Medicine, Case Western Reserve University, Cleveland, Ohio; and
8. Veterans Affairs Clinical Epidemiology Research Center, VA Connecticut Healthcare System, West Haven, Connecticut