Design features and appraisal of the internal validity of included studies.
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https://figshare.com/articles/dataset/Design_features_and_appraisal_of_the_internal_validity_of_included_studies_/5152438
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Risk of bias is expressed as A (low risk), B (moderate risk), C (high risk), and D (incomplete reporting leading to inability to ascertain the underlying risk of bias).
偏倚风险（Risk of bias）的等级划分为以下四类：A代表低偏倚风险，B代表中等偏倚风险，C代表高偏倚风险，D代表因报告不完整而无法确定潜在偏倚风险的情形。
创建时间：
2017-06-29
