Takahashi, Yoshiyuki
Tsuchitani, Tatsuya
Kotoura, Noriko
Kitajima, Kazuhiro
Article History
Received: 20 February 2019
Revised: 20 July 2019
Accepted: 20 July 2019
First Online: 25 July 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies performed with human participants and animals.
: Informed consent was obtained from all individual participants included in the study.