Medical science is not foundedon "common sense, " but on uncommon investigation: on randomized, controlled studies that try to rule out as many confoundingvariables as possible.
医学科学并不是建立在“常识”基础之上的，而是建立在特殊的科学研究之上：为尽可能排除一切混杂变量而在控制范围内随意抽样化验。
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