Yamamoto, Seiji
Niida, Shumpei
Azuma, Erika
Yanagibashi, Tsutomu
Muramatsu, Masashi
Huang, Ting Ting
Sagara, Hiroshi
Higaki, Sayuri
Ikutani, Masashi
Nagai, Yoshinori
Takatsu, Kiyoshi
Miyazaki, Kenji
Hamashima, Takeru
Mori, Hisashi
Matsuda, Naoyuki
Ishii, Yoko
Sasahara, Masakiyo
Article History
Received: 28 September 2014
Accepted: 22 January 2015
First Online: 17 February 2015
Competing interests
: The authors declare no competing financial interests.