title: Diphtheria antitoxin level and effect of the immunization with the toxoid in Chiang Mai in 1977-1982.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D004166:Diphtheria Antitoxin / Q000032:analysis*; D004168:Diphtheria Toxoid / Q000276:immunology*; D006801:Humans; D007114:Immunization; D013785:Thailand
chemical_list: D004166:Diphtheria Antitoxin; D004168:Diphtheria Toxoid