- Correspondence to Youichi Yanagawa, Acute Critical Care Medicine, Juntendo Daigaku Igakubu Fuzoku Shizuoka Byoin, Izunokuni, Shizuoka 410-2295, Japan;
- Received June 10, 2019
- Revision received June 14, 2019
- Accepted June 18, 2019
- First published June 29, 2019.
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