Komeya, Mitsuru http://orcid.org/0000-0002-0744-7492
Usui, Kimitsugu
Asai, Takuo
Ogawa, Takehiko
Taguri, Masataka
Kataoka, Koshi
Yao, Masahiro
Matsuzaki, Junichi
Article History
Received: 5 February 2018
Accepted: 8 May 2018
First Online: 14 May 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.
: Informed consent was obtained from all individual participants included in the study.