Problems in rubella immunization.
D002662:Child Health Services; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007114:Immunization; D007223:Infant; D008297:Male; D011247:Pregnancy; D012409:Rubella / Q000517:prevention & control*; D012411:Rubella Vaccine
D012411:Rubella Vaccine