Arai, Yasuhiro
Kimura, Toru
Takahashi, Yuki
Hashimoto, Takashi
Arakawa, Mamoru
Okamura, Homare http://orcid.org/0000-0002-8806-5110
Article History
Received: 23 November 2018
Accepted: 1 April 2019
First Online: 5 April 2019
Compliance with ethical standards
:
: The authors have declared that no conflict of interest exists.
Free to read: This content has been made available to all.