Kai, Hisashi
,
Katoh, Atsushi
Harada, Haruhito
Niiyama, Hiroshi
Furukawa, Yutaka
Kimura, Takeshi
Article History
Received: 9 November 2019
Revised: 9 January 2020
Accepted: 12 January 2020
First Online: 4 February 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.