Nomura, Eiichi http://orcid.org/0000-0003-0990-1385
Takemaru, Makoto
Himeno, Takahiro
Kono, Ryuhei
Fukushima, Tomoko
Ota, Shinzo
Article History
First Online: 11 February 2020
Compliance with ethical standards
:
: All the authors declared that they have no conflict of interest.<b>Ethics approval:</b> The study protocol was approved by our institutional review board.