1. American Academy of Family Physicians, "Combination Vaccines for Childhood Immunizations, Recommendations of the Advisory Committee on Immunization Practices (ACIP) and the American Academy of Pediatrics (AAP), and the American Academy of Family Physicians," 2000. http://www.aafp.org/clinical/ chidimmun/combvacc.html
2. Center for Disease Control, "Using Live, Attenuated Influenza Vaccination for Prevention and Control of Influenza," Morbidity and Mortality Weekly Report, LII(RR13), 2003.
3. - "Behavioral Risk Factor Surveillance System; Trend Data," http:// 198.246.97.130/brfss/Trends/trendchart.asp?qkey10120&stateUS, 2002b.