Clinical trials of negative results must be emphasized[J]. Journal of Evidence-Based Medicine, 2003, 3(1): 1-2. DOI: 10.3969/j.issn.1671-5144.2003.01.001
    Citation: Clinical trials of negative results must be emphasized[J]. Journal of Evidence-Based Medicine, 2003, 3(1): 1-2. DOI: 10.3969/j.issn.1671-5144.2003.01.001

    Clinical trials of negative results must be emphasized

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