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VA保健系统研究人员对前列腺癌患者治疗情况进行大规模临床实验研究,以期发现在VA和其他病人之间存在的潜在差异。CaPSURE是正在进行的前列腺癌患者观察数据库,由全美35个治疗中心的7202例病人构成,其中共有241例病人的3家单位是VA的医学中心。将数据库内VA和非VA病例间的人口?
VA Health Systems researchers conduct a large-scale clinical trial of treatment of patients with prostate cancer to find potential differences between VA and other patients. CaPSURE is an ongoing database of prostate cancer patient observations comprised of 7202 patients at 35 treatment centers across the United States. Of these, 241 patients comprised 3 of the 241 VA units. Will the database of VA and non-VA cases between the population?