迁延性、慢性腹泻是小儿常见病，病因复杂，发病率高。
Puerile chronic persisting diarrhea is a kind of common disease.
探讨小儿慢性腹泻（CDD）的流行病学与病因、发病情况、病因与临床特点。
To explore the epidemiology and etiology of chronic diarrhea diseases(CDD)in children, and understand the incidence, etiology and clinical manifestation.
探讨小儿慢性腹泻（CDD）的流行病学与病因、发病情况、病因与临床特点。
To explore the epidemiology and etiology of chronic diarrhea diseases(CDD)in children, and understand the incidence, etiology and clinical manifestation.
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