Correction: The effect of epidural analgesia on cancer progression in patients with stage IV colorectal cancer after primary tumor resection: A retrospective cohort study.

Tai, Ying-Hsuan; Chang, Wen-Kuei; Wu, Hsiang-Ling; Chan, Min-Ya; Chen, Hsiu-Hsi; Chang, Kuang-Yi · PLoS One · 2018

retrospective_cohort · Level III

Where this comes from

Abstract

[This corrects the article DOI: 10.1371/journal.pone.0200893.].