[THE PHENOMENON OF THE CHANGE IN DISTRIBUTION OF DIPHTHERIA MORBIDITY AMONG THE OLDER AGE GROUPS].
D000293:Adolescent; D000486:Allergy and Immunology; D001699:Biometry; D002648:Child; D004165:Diphtheria; D004813:Epidemiology; D006801:Humans; D007223:Infant; D009017:Morbidity; D013223:Statistics as Topic
ADOLESCENCE; CHILD; DIPHTHERIA; EPIDEMIOLOGY; IMMUNOLOGY; INFANT; STATISTICS
FENOMENUL DEPLAS ARII  IN TREPTE A MORBIDIT ATII PRIN DIFTERIE SPRE GRUPELE DE V IRST A MARE.