Institution: | a Division of Infectious Diseases and Health Policy Research Institute, University California Irvine School of Medicine, 100 Theory Ave, Suite 110, Irvine, CA 92697, USA b Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, 133 Brookline Avenue, 3rd Floor, Boston, MA 02215, USA c Division of Research, Kaiser Permanente, 2000 Broadway, Oakland, CA 94612, USA d Division of General Pediatrics, Children's Hospital Boston, 300 Longwood Ave, Boston, MA 02215, USA e Centers for Disease Control and Prevention, 1600 Clifton Road, Atlanta, GA 30333, USA f Division of General Medicine and Primary Care, Department of Medicine, Brigham & Women's Hospital and Harvard Medical School, 75 Francis Street, Boston, MA 02215, USA g Department of Preventative Medicine, Vanderbilt University School of Medicine, 1500 21st Avenue South, Suite 2100, Nashville, TN 37212, USA h Division of General Internal Medicine, University of Pennsylvania School of Medicine, Philadelphia, 421 Guardian Drive, 8th Floor, Philadelphia, PA 19104, USA |