Kuwabara, Shirou
Kobayashi, Kazuaki
Kubota, Akira
Shioi, Ikuma
Yamaguchi, Kenji
Katayanagi, Norio
Article History
Received: 28 August 2017
Accepted: 4 April 2018
First Online: 15 April 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: For this type of study, formal consent is not required.