Saito, Ryoichi http://orcid.org/0000-0002-3163-8723
Kobayashi, Takashi
Kashima, Soki
Matsumoto, Keiyu
Ogawa, Osamu
Article History
Received: 10 June 2019
Accepted: 1 August 2019
First Online: 12 August 2019
Compliance with ethical standards
:
: Authors Ryoichi Saito, Takashi Kobayashi, Soki Kashima, Keiyu Matsumoto, and Osamu Ogawa declare that they have no conflict of interest.
: The authors comply with the ethical standards of IJCO.
: This article does not contain any studies with human participants performed by any of the authors.