Katayama, Shinshu
Shima, Jun
Tonai, Ken
Koyama, Kansuke
Nunomiya, Shin
Article History
Received: 12 June 2020
Accepted: 15 April 2021
First Online: 26 April 2021
Competing interests
: S.K. has a contract of consultation with Hamilton Medical. To conduct this study, a ventilator G5 from Nihon Kohden was rented to our ICU with the research contract. K.T, J.S, K.K, and S.N have disclosed that they do not have any potential conflicts of interest.