Masuda, Tsuyoshi
Yoshioka, Toshitada
Takahashi, Tomoyuki
Takeda, Hiroshi
Hatta, Hideo
Matsushita, Kensaku
Tako, Yasuhiro
Takaku, Yuichi
Hisamatsu, Shun’ichi
Article History
Received: 16 January 2020
Accepted: 24 April 2020
First Online: 18 May 2020
Competing interests
: The authors declare no competing interests.