title: [Intensity of immunity to diphtheria among children and adolescents in urban and rural localities].
mesh_terms: D000293:Adolescent; D002648:Child; D004165:Diphtheria / Q000517:prevention & control*; D004166:Diphtheria Antitoxin / Q000032:analysis*; D006386:Hemagglutination Tests; D006801:Humans; D007117:Immunization, Secondary; D008433:Mathematics; D012424:Rural Population; D014586:USSR; D014505:Urban Population; D014611:Vaccination
chemical_list: D004166:Diphtheria Antitoxin
vernacular_title: K voprosu o napriazhennosti protivodifteriinogo immuniteta u deteĭ i podrostkov v gorodskoĭ i sel'skoĭ mestnosti.