Kitagawa, Yoshiyasu
Okumura, Kazuhiro
Watanabe, Takayoshi
Tsukamoto, Kei
Kitano, Shiro
Nankinzan, Rino
Suzuki, Takuto
Hara, Taro
Soda, Hiroaki
Denda, Tadamichi
Yamaguchi, Taketo
Nagase, Hiroki http://orcid.org/0000-0002-3992-5399
Article History
Received: 20 February 2019
Accepted: 18 July 2019
First Online: 5 August 2019
Competing Interests
: Y.K., K.O., T.W., R.N., T.S., T.H., H.S., T.D., T.Y. and H.N. declare no competing interests. K.T. and S.K. are employees of TOPPAN PRINTING CO., LTD.