title: Measles immunisation before the age of nine months? Position statement by the expanded programme on immunisation of the World Health Organisation.
mesh_terms: D000367:Age Factors; D006801:Humans; D007117:Immunization, Secondary; D007223:Infant; D008457:Measles / Q000517:prevention & control*; D008458:Measles Vaccine / Q000008:administration & dosage*; D014611:Vaccination; D014944:World Health Organization
chemical_list: D008458:Measles Vaccine