title: Development of the premature infant's host defense system and its relationship to routine immunizations.
mesh_terms: D000917:Antibody Formation; D004168:Diphtheria Toxoid / Q000008:administration & dosage; D006801:Humans; D007109:Immunity; D007111:Immunity, Cellular; D007114:Immunization; D007115:Immunization Schedule; D007223:Infant; D007231:Infant, Newborn; D007234:Infant, Premature; D010567:Pertussis Vaccine / Q000008:administration & dosage / Q000009:adverse effects; D013745:Tetanus Toxoid / Q000008:administration & dosage
chemical_list: D004168:Diphtheria Toxoid; D010567:Pertussis Vaccine; D013745:Tetanus Toxoid