Objective: to evaluate the value of TSGF (tumor Supplied Group of Factors) in the diagnosis of the tumors by measuring serum TSGF level on patients with or without malignant tumors.

目的：通过检测恶性肿瘤患者和非肿瘤患者血清恶性肿瘤相关物质群(TSGF)水平，探讨TSGF在恶性肿瘤诊断中的价值。

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Objective to explore the differentiation between the primary brain tumor and metastatic brain tumor by the measurement of levels of serum tumor supplied group of factors (TSGF).

目的通过对脑肿瘤患者血清肿瘤相关生长因子(TSGF)的检测，探讨对于脑原发性肿瘤和脑转移性肿瘤的鉴别。

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