Adachi, Takeya
Kobayashi, Tetsuro
Sugihara, Eiji
Yamada, Taketo
Ikuta, Koichi
Pittaluga, Stefania
Saya, Hideyuki http://orcid.org/0000-0001-6610-1902
Amagai, Masayuki
Nagao, Keisuke http://orcid.org/0000-0002-7005-3138
Article History
Received: 2 July 2015
Accepted: 2 September 2015
First Online: 19 October 2015
Competing interests
: The authors declare no competing financial interests.