3CDC.General recommendations on immunizations Recommendations of the Advisory on Immunization Practices (ACIP)[J].MMWR,1994,43 (PR-1):1-38.
4Lennon JL,Black FL.Maternally derived measles immunity in era of vaccine-protected mothers[J].J Pediatr,1986,108(5pt1):671.
5Gans HA,Arvin AM,Galinus J,et al.Deficiency of the Humoral Immune Response to Measles Vaccine in Infants Immunized at Age 6 Months[J].JAMA,1998,280(6):527-532.