title: Letter: Triple vaccine.
mesh_terms: D004168:Diphtheria Toxoid / Q000592:standards*; D006801:Humans; D007115:Immunization Schedule; D007194:India; D007223:Infant; D010567:Pertussis Vaccine / Q000592:standards*; D013745:Tetanus Toxoid / Q000592:standards*
chemical_list: D004168:Diphtheria Toxoid; D010567:Pertussis Vaccine; D013745:Tetanus Toxoid