In the article titled “Efficacy and Safety of Butorphanol Use in Patient-Controlled Analgesia: A Meta-Analysis” [1], the funding statement was omitted by mistake and is as follows.
Acknowledgments
The study was supported by the Natural Science Foundation of Jilin Province Joint Fund of Bethune Medical Specialty (no. 20200201618JC).
References
- 1.Zhu Z., Zhang W. Efficacy and safety of butorphanol use in patient-controlled analgesia: a meta-analysis. Evidence-Based Complementary and Alternative Medicine . 2021;2021:9. doi: 10.1155/2021/5530441.5530441 [DOI] [PMC free article] [PubMed] [Google Scholar]