[1] Oregon Health Sciences University,Received from the General Internal Medicine Section, Portland Veterans Affairs Medical Center, Department of Medicine
[2] University of Michigan,Division of General Medicine
[3] University of Washington,Department of Pediatrics and the Child Health Institute
[4] Harvard Medical School and Harvard Pilgrim Health Care,Department of Ambulatory Care and Prevention
[5] VA Puget Sound Health Care System,Northwest Health Services Research and Development Field Program
[6] University of Washington,Departments of Medicine and Health Services