Iwatsu, Jun
Yabe, Yutaka
Sekiguchi, Takuya
Momma, Haruki
Tsuchiya, Masahiro
Kanazawa, Kenji
Yoshida, Shinichirou
Sogi, Yasuhito
Nagatomi, Ryoichi
Hagiwara, Yoshihiro
Article History
Received: 27 May 2022
Accepted: 9 December 2022
First Online: 7 February 2023
Declarations
:
: This retrospective study was conducted according to the Declaration of Helsinki. The study protocol was reviewed and approved by the Ethics Committee on Research of Human Subjects at Tohoku University Graduate School of Medicine (Approved Number: 2013-564) All methods were carried out in accordance with relevant guidelines and regulations. Participants provided written informed consent before participating in the study. Parental/guardian informed consent forms were obtained for the participants who were younger than 16 years.
: Not applicable.
: The authors declare that they have no competing interests.