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癌症疼痛是癌症患者最主要的症状之一，我国每年癌症发病人数为１６０万，其中５１．１％的癌症病人伴有中度或重度疼痛［１］。为了有效的控制癌痛，ＷＨＯ于１９８２年提出了“２０００年实现癌症病人无疼痛”的目标，我国卫生部也于１９９１年下发了“癌症病人三级止痛...
Cancer pain is one of the most important symptoms of cancer patients. The annual incidence of cancer in China is 1.6 million, of which 51.1% of cancer patients are associated with moderate or severe pain [1]. In order to effectively control cancer pain, WHO in 1982 put forward the goal of “to achieve no pain in cancer patients in 2000”. The Ministry of Health of the People’s Republic of China also issued in 1991 "Three levels of pain relief for cancer patients...