BACKGROUND: Chronic pain, including hyperalgesia and algesthesia paresthesia, is pathological phenomenons making the patients felt unendurable and lacking of clinical treatments.

背景：慢性痛包括痛觉过敏和痛觉感觉异常，是患者感到难以忍受和临床缺乏治疗手段的一种病理现象。

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BACKGROUND: Chronic pain, including hyperalgesia and algesthesia paresthesia, is pathological phenomenons making the patients felt unendurable and lacking of clinical treatments.

背景：慢性痛包括痛觉过敏和痛觉感觉异常，是患者感到难以忍受和临床缺乏治疗手段的一种病理现象。

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