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据最近国内调查,癌症病人中有疼痛者占51.1%,晚期以疼痛为主要症状占70%。全球约有300～500万癌痛病人忍受着中等程度以上癌痛的折磨。因此,治疗癌痛对改善患者生存质量具有重要意义。为达到
According to a recent domestic survey, 51.1% of cancer patients have pain, and pain is the main symptom in the late 70%. About 3 to 5 million cancer pain patients worldwide endure the pain of moderate or more cancer pain. Therefore, the treatment of cancer pain is of great significance to improve the quality of life of patients. To achieve