细胞游离DNA在胆道癌诊断中的价值：一项meta分析

杨越, 何开举, 宗家豪, 杨自逸, 吴向嵩, 龚伟

Diagnostic value of cell-free DNA to biliary tract cancers: a meta-analysis

YANG Yue, HE Kaiju, ZONG Jiahao, YANG Ziyi, WU Xiangsong, GONG Wei

图3 Cochrane偏倚风险百分图

Fig 3 Bar chart of the Cochrane′s risk of bias