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２２例颅内血管母细胞瘤单纯手术与术后放疗的对比观察张杨张红雁△程广源△３讨论细胞转化是一个涉及癌基因活化的多步骤过程，研究胶质瘤细胞在诱导分化过程中ｃ－ｍｙｃ和Ｎ－ｒａｓ基因表达水平的改变将有利于阐明其在肿瘤发生发展过程中的作用〔５〕。本组ＳＨＧ－４...
22 cases of intracranial hemangioblastoma surgery alone and postoperative radiotherapy contrast observation Zhang Yang Zhang Hongyan △ Cheng Guangyuan △ 3 Discussion Cell transformation is a multi-step process involved in oncogene activation, glioma cell differentiation in the process of c-myc And N-ras gene expression changes will help clarify its role in tumor development [5]. This group SHG-4 ...