双盲临床试验常采用二次揭盲的方法．当病例报告表(CRF)双份全部输入计算机，并经盲态审核(Blinding Review)后，数据将被镇定( Locked )，这时保存全部盲底的药品监督管理部门行政人员将进行第一次揭盲，即将各病例号所对应的分成二组(如A...
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Despite this, Cohen claimed in his review article that the 12-year-old study had a low risk of bias for blinding.
FORBES: Bad Medicine Infiltrates MD Anderson Cancer Center
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