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ABC=active breathing control=主动呼吸控制;AC:abdominal compression:腹部加压;AJCC=American joint committee on cancer=美国癌症研究联合会;ASCO=American society of clinical oncology=美国临床肿瘤学会;ATM=ataxia—telangiectasia mutated=毛细血管扩张共济失调突变;ATR=ataxia-telangiectasia and rad3-related=与tad3相关的毛细血管扩张共济失调;Ax=接受xGy照射的食管表面积。