Maruyama, Nobuyuki
Matsuoka, Yuki
Yokoyama, Kazunori
Takagi, Kyoko
Yamada, Tetsuya
Hasegawa, Hisakazu
Terakawa, Teruhiko
Ishimoto, Masao
Article History
Received: 7 September 2017
Accepted: 15 December 2017
First Online: 18 January 2018
Competing Interests
: H. Hasegawa and T. Terakawa are employees of Hokko Chemical Industry Co., LTD. The rest of the authors declare that they have no relevant conflicts of interests related to this work.