The original online version of this article (Ichikawa Yuki, Ueshima Hironobu, Hiroshi Otake, Akira Kitamura (2017) PECS Block Provides Effective Postoperative Pain Management for Breast Cancer Surgery—A Retrospective Study. International Journal of Clinical Medicine, 8, 198-203. https://doi.org/10.4236/ijcm.2017.83019) unfortunately contains some mistakes. The author wishes to correct the errors in pain management tools, method, and figures.
Our article had some mistakes in pain management tools, method, and figures. The followings are the list of errata and correct figures.
[List of Errata]
Figure 1. Flowchart of this study.
Figure 2. Postoperative NRS score at 0, 0 - 4, 4 - 6, 6 - 12, 12 - 24 hours postoperatively. *P < 0.01; **P < 0.05.