[CONSIDERATIONS ON 2 EPIDEMIC FOCI OF DIPTHERIA].
D000293:Adolescent; D002648:Child; D004165:Diphtheria; D058872:Epidemics; D004813:Epidemiology; D006801:Humans; D007223:Infant; D012383:Romania
ADOLESCENCE; CHILD; DIPHTHERIA; EPIDEMIOLOGY; INFANT; RUMANIA