Yasunaga, Akitomo https://orcid.org/0000-0002-9924-4042
Shibata, Ai
Ishii, Kaori
Inoue, Shigeru
Sugiyama, Takemi
Owen, Neville
Oka, Koichiro
Funding for this research was provided by:
JSPS KAKENHI Grant (15K01534, 15K01647)
MEXT-Supported Program for the Strategic Research Foundation at Private Universities (S1511017)
Article History
Received: 14 June 2018
Accepted: 11 December 2018
First Online: 27 December 2018
Ethics approval and consent to participate
: The study was approved by the Waseda University Institutional Committee on Human Research (2013–265) and the Institutional Review Board of Chiba Prefectural University of Health Sciences, Japan (2012–042). All participants gave written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
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