Expanded programme on immunization (EPI). The Measles Elimination Programme.
D000328:Adult; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D008457:Measles / Q000453:epidemiology / Q000517:prevention & control*; D011647:Puerto Rico / Q000453:epidemiology; D014611:Vaccination