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Authors
Okahara, Shuji
Shimizu, Kazuyoshi
Suzuki, Satoshi
Ishii, Kenzo
Morimatsu, Hiroshi https://orcid.org/0000-0002-6744-0508
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More Information
Article History
Received: 15 September 2017
Accepted: 19 January 2018
First Online: 25 January 2018
Authors’ information
: All the co-authors approve the publication of this manuscript. This work is to be attributed to the Department of Anesthesiology, Okayama University.
: This study was approved by the institutional ethics review board of Okayama University Hospital (No. 1922) and Fukuyama City Hospital (No. 182). Due to observational study, the requirement for written informed consent was waived by each IRB.
: Not applicable
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
