Fig. 1
From: Prognostic and clinicopathologic significance of circZFR in multiple human cancers
![Fig. 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12957-022-02733-9/MediaObjects/12957_2022_2733_Fig1_HTML.png)
Flow diagram of the study selection procedure
From: Prognostic and clinicopathologic significance of circZFR in multiple human cancers
Flow diagram of the study selection procedure