Kiyoshi, Masato
Caaveiro, Jose M.M.
Kawai, Takeaki
Tashiro, Shinya
Ide, Teruhiko
Asaoka, Yoshiharu
Hatayama, Kouta
Tsumoto, Kouhei
Article History
Received: 20 August 2014
Accepted: 8 March 2015
First Online: 30 April 2015
Competing interests
: T.I., Y.A. and K.H. are full-time employees of Tosoh Corporation. The remaining authors declare no competing financial interest.