Kuraishi, Yasuhiro
Uehara, Takeshi
Muraki, Takashi
Iwaya, Mai
Kinugawa, Yasuhiro
Nakajima, Tomoyuki
Watanabe, Takayuki
Miyagawa, Yusuke
Umemura, Takeji
Article History
Received: 18 May 2021
Accepted: 22 July 2021
First Online: 9 August 2021
Declarations
:
: This study was approved by the Ethics Committee of Shinshu University School of Medicine (Approval Code: 537). The requirement of informed consent was waived, and an opt-out method was used because of the retrospective design of the study. The investigation was conducted in compliance with the Helsinki Declaration.
: Not applicable.
: The authors declare that they have no competing interests.