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Schulz KF, Altman DG, Moher D; Consort Group.Schulz KF, et al.Zhong Xi Yi Jie He Xue Bao. 2010 Jul;8(7):604-12. doi: 10.3736/jcim20100702.Zhong Xi Yi Jie He Xue Bao. 2010.PMID: 20619135Chinese.