方法采用数字疼痛分级法（NRS），对200例晚期癌症患者的癌痛程度进行评估；

Methods Evaluating pain degrees of 200 late staged cancer patients against Numerical Rating Scale (NRS).

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疼痛程度分级采用语言评价量表(vrs)法。

Verbal rating scale (VRS) was used to evaluate pain degree.

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疼痛程度分级采用语言评价量表(vrs)法。

Verbal rating scale (VRS) was used to evaluate pain degree.

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