Role of Health Insurance and a Usual Source of Medical Care in Age-Appropriate Vaccination
Kevin J. Dombkowski, DrPH, MS,
Paula M. Lantz, PhD, MS and
Gary L. Freed, MD, MPH
Kevin Dombkowski and Gary Freed are with the Child Health Evaluation and Research Unit, Division of General Pediatrics, University of Michigan, Ann Arbor. Gary Freed and Paula Lantz are with the Department of Health Management and Policy, School of Public Health, University of Michigan.