1 Division of General Internal Medicine and Primary Care, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Mass.
2 Division of General Internal Medicine and Primary Care, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Mass. Electronic address: lwang@bwh.harvard.edu.
3 Clinical and Quality Analysis, Information Systems, Mass General Brigham, Somerville, Mass.
4 Division of Rheumatology, Allergy and Immunology, and Medical Practice Evaluation Center, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Mass.
5 Department of Emergency Medicine, University of Colorado School of Medicine, Aurora, Colo.