Azuma, Minako http://orcid.org/0000-0002-4837-4197
Hirai, Toshinori
Kadota, Yoshihito
Khant, Zaw Aung
Hattori, Yohei
Kitajima, Mika
Uetani, Hiroyuki
Yamashita, Yasuyuki
Article History
Received: 6 November 2017
Accepted: 10 April 2018
First Online: 2 May 2018
Compliance with ethical standards
:
: No funding was received for this study.
: The authors declare that they have no conflict of interest.
: All procedures performed in the studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: For this type of study formal consent is not required.