1. Progress in immunization information systems—United States, 2009;MMWR Morb Mortal Wkly Rep,2011
2. Enhancing participation in immunization information systems (IIS): recommendations to the National Vaccine Advisory Committee. Available at: http://www.hhs.gov/nvpo/nvac/iisrecommendationssep08.html. Accessed October 17, 2012.
3. Healthy People 2020: Immunization and Infectious Diseases,2010
4. Accuracy of a state immunization registry in the pediatric emergency department;Stecher;Pediatr Emerg Care,2008
5. Assessment of immunization registry databases as supplemental sources of data to improve ascertainment of vaccination coverage estimates in the national immunization survey;Khare;Arch Pediatr Adolesc Med,2006