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The United States government supports large-scale cancer clinical trials through a mechanism first introduced in the 1950s.
Multiinstitutional Cancer Clinical Trials in the US National Clinical Trials Network
【摘 要】
：
The United States government supports large-scale cancer clinical trials through a mechanism first introduced in the 1950s.
【出 处】
：
第十四届全国肝癌学术会议
【发表日期】
：
2013年11期
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