title: Repeated immunisation injections in children.
mesh_terms: D001315:Australia; D002648:Child; D004168:Diphtheria Toxoid / Q000008:administration & dosage*; D006801:Humans; D007115:Immunization Schedule; D007117:Immunization, Secondary; D011055:Poliovirus Vaccine, Oral / Q000008:administration & dosage*; D013745:Tetanus Toxoid / Q000008:administration & dosage*
chemical_list: D004168:Diphtheria Toxoid; D011055:Poliovirus Vaccine, Oral; D013745:Tetanus Toxoid