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2. The immunization system in the United States;Orenstein;Vaccine,1999
3. Immunization of adolescents;MMWR,1996
4. Immunization Action Coalition. What’s your state doing? Needle Tips 2000;10:14. (Updated information, “Hepatitis B Prevention Mandates for School” available on-line: http://www.immunize.org/laws/hepb.htm.)
5. Parents’ attitudes toward school-based hepatitis B vaccination of their children;Woodruff;Pediatrics,1996