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流行病学 据美国东部肿瘤协作组(ECOG)的调查,所有门诊癌症病人中有疼痛者达67％,其中42％没有得到合适的正痛治疗。此外,在肿瘤终末期前疼痛常常早已出现。癌痛的病因
Epidemiology According to the Eastern Cooperative Oncology Group (ECOG) survey, 67% of all outpatient cancer patients have pain and 42% of them have not received proper ortholytic treatment. In addition, pain often precedes the end of the tumor. The cause of cancer pain