Takeuchi, Yoko http://orcid.org/0000-0002-5362-5384
Fujita, Yoshihito
Shimomura, Takeshi
Kurokawa, Shuji
Noguchi, Hiroki
Fujiwara, Yoshihiro
Article History
Received: 17 August 2018
Accepted: 24 September 2018
First Online: 3 October 2018
Ethics approval and consent to participate
: Not applicable.
: Informed consent for scientific publication was obtained.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.