Kotoku, Kazuko
Yasuno, Tetsuhiko
Kawakami, Shotaro
Fujimi, Kanta
Matsuda, Takuro
Nakashima, Shihoko
Uehara, Yoshinari
Tanaka, Hiroaki
Saito, Takao
Higaki, Yasuki http://orcid.org/0000-0001-5127-4552
Article History
Received: 20 May 2018
Accepted: 25 December 2018
First Online: 7 February 2019
Compliance with ethical standards
:
: The authors declare that no conflict of interest exists.
: All procedures carried out in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee at which the studies were conducted (Ethics Committee of Fukuoka University approval number 16-4-01) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all participants included in the present study.