Endo, Hiroaki
Kase, Satoru http://orcid.org/0000-0003-3426-1674
Ito, Yuki
Takahashi, Mitsuo
Yokoi, Masahiko
Katsuta, Satoshi
Sonoda, Shozo
Sakamoto, Taiji
Ishida, Susumu
Kase, Manabu
Article History
Received: 11 January 2019
Revised: 25 February 2019
Accepted: 10 March 2019
First Online: 18 March 2019
Compliance with ethical standards
: For this type of study, formal consent is not required.
: The authors declare that they have no conflict of interest.