Less measles--really down this time?
D002648:Child; D002675:Child, Preschool; D004196:Disease Outbreaks; D005380:Financing, Government; D006801:Humans; D007114:Immunization; D007223:Infant; D008457:Measles / Q000453:epidemiology* / Q000517:prevention & control; D008458:Measles Vaccine; D014481:United States; D014611:Vaccination
D008458:Measles Vaccine