title: Factors affecting efficacy of B.C.G. vaccination.
mesh_terms: D001500:BCG Vaccine; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007239:Infections / Q000453:epidemiology; D009748:Nutrition Disorders / Q000453:epidemiology; D014397:Tuberculosis, Pulmonary / Q000453:epidemiology / Q000517:prevention & control*
chemical_list: D001500:BCG Vaccine