1 Division of General Internal Medicine, Department of Medicine, and Division of Informatics, Department of Biomedical Sciences, Cedars-Sinai Medical Center, and Department of Health Policy and Management, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, California.
2 Division of General Internal Medicine and Health Services Research, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, and VA Greater Los Angeles Healthcare System, Geriatric Research Education and Clinical Center (GRECC), Los Angeles, California.