Correction to: Polymyxin B-immobilized hemoperfusion and mortality in critically ill adult patients with sepsis/septic shock: a systematic review with meta-analysis and trial sequential analysis.

Owing to an oversight by the authors, Figure 2 in this article was not the version intended for publication. The correct Figure 2, reproduced here, features footnote symbols and Figure 2b includes three studies as described in the main text.