1. Center for Healthcare Organization and Implementation Research (CHOIR), VA Bedford Healthcare System , Bedford, MA 01730 , USA
2. Section of Endocrinology, Diabetes, Nutrition, and Weight Management, Boston University Chobanian and Avedisian School of Medicine , Boston, MA 02118 , USA
3. Department of Health Law Policy and Management, Boston University School of Public Health , Boston, MA 02118 , USA
4. Division of Endocrinology and Metabolism, University of Pittsburgh School of Medicine , Pittsburgh, PA 15213 , USA