Nakamura, Miki
Yoshida, Shoji
Katayama, Tomoki
Taninaka, Atsushi
Mera, Yutaka
Okada, Susumu
Takeuchi, Osamu
Shigekawa, Hidemi
Article History
Received: 15 July 2015
Accepted: 24 August 2015
First Online: 6 October 2015
Change Date: 3 December 2015
Change Type: Update
Change Details: This Article was originally published under NPG's License to Publish, which has now been changed to CC-BY 4.0. The PDF and HTML versions of the paper have been modified accordingly.
Competing interests
: The authors declare no competing financial interests.