Objective: To probe into the methods of controlling pain and it' s influence to improving later period tumour patients' life quality.

目的：探讨控制疼痛的方法以及对提高晚期肿瘤患者生活质量的影响。

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Methods: the conditions of the two medicines on controlling premature ventricular beats, improving cardiac function and decreasing case fatality rate were compared by random and contrast test.

方法：采用随机对照试验比较两者对室早的控制、心功能的改善及降低病死率的情况。

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