Shimizu, Norihiro
Oshitari, Toshiyuki
Yotsukura, Jiro
Yokouchi, Hirotaka
Baba, Takayuki
Yamamoto, Shuichi
Article History
Received: 15 July 2021
Accepted: 13 September 2021
First Online: 23 September 2021
Declarations
:
: All of the procedures conformed to the tenets of the World Medical Association Declaration of Helsinki. A written informed consent was obtained from a parent and/or legal guardian for subjects below 18 years. Otherwise, a written informed consent was directly obtained from all participants except for subjects below 18 years. An approval for the study was obtained from the Institutional Review Board of the Graduate School of Medicine, Chiba University, Japan (IRB#3848).
: Not applicable.
: The authors declare that they have no competing interests.