Uchino, Haruto http://orcid.org/0000-0001-6567-8136
Kazumata, Ken
Ito, Masaki
Nakayama, Naoki
Kuroda, Satoshi
Houkin, Kiyohiro
Article History
Received: 11 December 2019
Revised: 21 January 2020
Accepted: 10 February 2020
First Online: 19 February 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Hokkaido University Hospital ethical review board approval (IRB#015-0086) was received before the study. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.