1 Center for Health Systems Research, Office of Research, Denver Health and Hospital Authority (DJ Rinehart and HM Frost), Denver, Colo; Division of General Internal Medicine, School of Medicine, University of Colorado Anschutz Medical Campus (DJ Rinehart), Aurora, Colo. Electronic address: deborah.rinehart@dhha.org.
2 Center for Health Systems Research, Office of Research, Denver Health and Hospital Authority (DJ Rinehart and HM Frost), Denver, Colo; Department of Pediatrics, Denver Health and Hospital Authority (HM Frost), Denver, Colo; Department of Pediatrics, University of Colorado School of Medicine (HM Frost), Aurora, Colo.
3 Ambulatory Care Services, Denver Health and Hospital Authority (T Thomas-Gale and C Depue), Denver, Colo.
4 Public Health Institute at Denver Health (JC Shlay), Denver, Colo; Department of Family Medicine, School of Medicine, University of Colorado Anschutz Medical Campus (JC Shlay), Aurora, Colo.