Harada, Hiroki
Yamashita, Keishi
Katada, Chikatoshi
Ishiyama, Hiromichi
Soeno, Takafumi
Washio, Marie
Sakuraya, Mikiko
Ushiku, Hideki
Niihara, Masahiro
Hosoda, Kei
Hiki, Naoki http://orcid.org/0000-0002-6857-8736
Article History
Received: 12 March 2020
Accepted: 10 July 2020
First Online: 15 July 2020
Compliance with ethical standards
: All procedures performed in 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. Informed consent was obtained from all individual participants included in the study.
: The authors declare that they have no conflict of interest.