[CONTRIBUTION TO THE STUDY OF THE EPIDEMIOLOGY OF STREPTOCOCCAL INFECTIONS IN SEVERAL CHILD COMMUNITIES. I. PRELIMINARY BACTERIOLOGICAL DATA].
D000293:Adolescent; D002648:Child; D004813:Epidemiology; D006801:Humans; D012111:Residence Characteristics; D013290:Streptococcal Infections
ADOLESCENCE; CHILD; EPIDEMIOLOGY; STREPTOCOCCAL INFECTIONS
CONTRIBU TII LA STUDIUL EPIDEMIOLOGIEI INFEC TIILOR STREPTOCOCICE  IN UNELE COLECTIVIT A TI DE COPII. I. DATE BACTERIOLOGICE PRELIMINARE.