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本文根据1990年～1993年间延边地区县级以上医院住院治疗的全部恶性肿瘤病例进行了统计分析，以便了解本地区恶性肿瘤住院患病动态，为本地区肿瘤防治工作提供依据。1资料与方法本组调查的全部病例来自1990年～1993年间延边地区47所县（市）级以上医院收住确诊的恶性肿瘤患者的
According to the statistical analysis of all cases of malignant tumors hospitalized in hospitals above the county level in Yanbian during 1990-1993, this article aims to understand the prevalence of malignancy hospitalization in the region and provide evidence for the prevention and treatment of cancer in the region. 1 Materials and Methods All the cases investigated in this group were from patients with malignant tumors diagnosed at 47 hospitals above county (city) level in Yanbian from 1990 to 1993.