1. Department of Medicine, VA Greater Los Angeles Health System , Los Angeles, California, USA
2. Department of Medicine, University of California, Los Angeles , Los Angeles, California, USA
3. Department of Medicine, Cedars-Sinai Medical Center , Los Angeles, California, USA
4. Department of Health Policy and Management, University of North Carolina , Chapel Hill, North Carolina, USA
5. Department of Learning Health Sciences, University of Michigan , Ann Arbor, Michigan, USA
6. Department of Medicine, Massachusetts General Hospital and Harvard Medical School , Boston, Massachusetts, USA