Fig. 2
![Fig. 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs42155-020-0103-z/MediaObjects/42155_2020_103_Fig2_HTML.png)
Serum creatinine differences (Δ) in the immediate post-procedure period and 30 days post-intervention. CO2 (blue bars) and control (red bars) groups
Serum creatinine differences (Δ) in the immediate post-procedure period and 30 days post-intervention. CO2 (blue bars) and control (red bars) groups