Onzuka, Tatushi http://orcid.org/0000-0002-8550-451X
Furukawa, Kojiro
Tayama, Eiki
Morita, Shigeki
Shiose, Akira
Article History
Received: 8 January 2019
Accepted: 18 March 2019
First Online: 9 April 2019
Compliance with ethical standards
:
: Tatushi Onzuka, Kojiro Furukawa, Eiki Tayama, Shigeki Morita, and Akira Shiose declare that no conflict of interest exists.