Fujiyama, Hideki http://orcid.org/0000-0002-6902-0240
Article History
First Online: 16 October 2019
Compliance with ethical standards
:
: As for Conflict of Interest, the author declares that I have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of my institution.
: Informed consent was obtained from all individual participants included in the study.