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为研究行结肠癌择期手术患者的复发率和死亡率是否与术者或医院的手术量有关,研究者从美国国家住院患者样本数据库中选择了2003～2007年期间患结肠癌并首选择期手术切除方案的成年患者为研究对象。患者为来自1 398家医院的
To study whether the recurrence rate and mortality of patients undergoing elective colon cancer surgery are related to the surgeon’s or hospital’s surgery volume, the researchers selected patients with colon cancer from 2003 to 2007 from the National Inpatient Database and selected elective surgery Adult patients undergoing excision regimen as study subjects. The patients were from 1 398 hospitals