Yamamura, Eiji
Aruga, Chinami
Muto, Shigeharu
Baba, Nobuyuki
Uno, Yoshifumi
Article History
Received: 1 November 2017
Accepted: 5 February 2018
First Online: 6 March 2018
Ethics approval
: Animal experiments were conducted in accordance with the rules of animal welfare in the testing facilities and approved by the ethical committee.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.