Kosoku, Akihiro
Uchida, Junji
Nishide, Shunji
Kabei, Kazuya
Shimada, Hisao
Iwai, Tomoaki
Maeda, Keiko
Hanayama, Yoshiko
Ishihara, Takuma
Naganuma, Toshihide
Takemoto, Yoshiaki
Nakatani, Tatsuya
Article History
Received: 5 July 2019
Accepted: 19 December 2019
First Online: 14 January 2020
Competing interests
: The authors declare no competing interests.