[Epidemiologic importance of undiagnosed nephritis among students].
D000293:Adolescent; D002648:Child; D006801:Humans; D009393:Nephritis / Q000453:epidemiology*; D013030:Spain; D013290:Streptococcal Infections / Q000453:epidemiology; D013334:Students
Importancia epidemiológico de la nefritis ignoradas en los escolares.