Kanai, Masahiro https://orcid.org/0000-0001-5165-4408
Akiyama, Masato
Takahashi, Atsushi https://orcid.org/0000-0001-7099-8767
Matoba, Nana https://orcid.org/0000-0001-5329-0134
Momozawa, Yukihide
Ikeda, Masashi
Iwata, Nakao https://orcid.org/0000-0003-3189-6076
Ikegawa, Shiro
Hirata, Makoto
Matsuda, Koichi https://orcid.org/0000-0001-7292-2686
Kubo, Michiaki
Okada, Yukinori https://orcid.org/0000-0002-0311-8472
Kamatani, Yoichiro https://orcid.org/0000-0001-8748-5597
Article History
Received: 5 June 2017
Accepted: 21 December 2017
First Online: 5 February 2018
Competing interests
: The authors declare no competing financial interests.