Muraoka, Hirotaka http://orcid.org/0000-0001-5764-2002
Hirahara, Naohisa
Ito, Kotaro
Kondo, Takumi
Ichiki, Shungo
Kaneda, Takashi
Article History
Received: 23 August 2020
Accepted: 23 February 2021
First Online: 29 March 2021
Declarations
:
: The study had the approval of Nihon University ethics committee (EC19-011).
: Not applicable.
: Hirotaka Muraoka, Naohisa Hirahara, Kotaro Ito, Takumi Kondo, Shungo Ichiki and Takashi Kaneda declare that they have no competing interests.