1. Progress on the childhood immunization initiative.;Robinson;Public Health Rep,1994
2. Evolution of measles elimination strategies in the United States.;Hinman;J Infect Dis,2004
3. Vaccines for Children program, United States, 1997.;Santoli;Pediatrics,1999
4. Immunization information system progress--United States, 2006.;MMWR Morb Mortal Wkly Rep,2008
5. Practice-based electronic billing systems and their impact on immunization registries.;Kolasa;J Public Health Manag Pract,2005