Kawada, Tomoyuki https://orcid.org/0000-0002-4426-4644
Article History
Received: 29 June 2020
Accepted: 17 July 2020
First Online: 28 July 2020
Compliance with ethical standards
:
: The author declares that he/she has no conflict of interest.
: This article does not contain any studies with human or animal subjects performed by the any of the authors.
: For this type of study, formal consent is not required.