Kumagai, Ken
Yamada, Shunsuke
Akamatsu, Tomotaka
Nejima, Shuntaro
Ogino, Takehiro
Sotozawa, Masaichi
Inaba, Yutaka
Article History
Received: 7 September 2019
First Online: 27 March 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study was approved by the institutional review board.
: Informed consent was obtained from all individual participants included in the study.