title: The cold chain and the expanded program on immunization in Chile: an evaluation exercise.
mesh_terms: D002677:Chile; D003080:Cold Temperature; D004356:Drug Storage; D005069:Evaluation Studies as Topic; D006801:Humans; D007114:Immunization; D008458:Measles Vaccine / Q000592:standards; D012034:Refrigeration; D014612:Vaccines / Q000592:standards*
chemical_list: D008458:Measles Vaccine; D014612:Vaccines