Hasegawa, Yasushi
Ikuta, Rikizo http://orcid.org/0000-0001-8628-7177
Matsuda, Nobuyuki http://orcid.org/0000-0001-6014-3570
Tamaki, Kiyoshi
Lo, Hoi-Kwong
Yamamoto, Takashi http://orcid.org/0000-0002-9526-6041
Azuma, Koji
Imoto, Nobuyuki
Article History
Received: 16 February 2018
Accepted: 7 December 2018
First Online: 28 January 2019
Competing interests
: The authors declare no competing interests.