Watanabe, Kazuhiro
Itoh, Kikuji
Park, Sang-Hee
Kaku, Mitsuo
Ishii, Keiko
Sasano, Hironobu
Naitoh, Takeshi
Unno, Michiaki
Fukushima, Kouhei
Article History
Received: 3 September 2019
Accepted: 10 January 2020
First Online: 15 February 2020
Compliance with ethical standards
:
: We have no competing financial interests to declare.
: The research protocol was approved by the Ethics Committee of Tohoku University Graduate School of Medicine.