近期,BMJ撤回了一篇研究意外体重下降可能是癌症预警信号的论文,因为作者发现了研究中存在选择偏倚。随后,BMJ发布了更新版本,得出了不同的结论,作者认为这可能会对患者治疗产生影响。这篇撤稿论文题为“Prioritising primary care patients with unexpected weight loss for cancer investigation: diagnostic a ...
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