About the Authors

Seung-Woo Ku

Contributed equally to this work with: Seung-Woo Ku, UnCheol Lee

Affiliations Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea, Department of Anesthesiology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America

UnCheol Lee

Contributed equally to this work with: Seung-Woo Ku, UnCheol Lee

Affiliation Department of Anesthesiology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America

Gyu-Jeong Noh

Affiliation Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea

In-Gu Jun

Affiliation Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea

George A. Mashour

gmashour@umich.edu

Affiliation Department of Anesthesiology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SWK GJN GAM. Performed the experiments: SWK GJN IGJ. Analyzed the data: SWK UL GAM. Contributed reagents/materials/analysis tools: SWK GJN IGJ. Wrote the paper: SWK UL GAM.