Nakajima, Tomoyuki
Uehara, Takeshi
Iwaya, Mai
Kobayashi, Yukihiro
Maruyama, Yasuhiro
Ota, Hiroyoshi
Funding for this research was provided by:
Hokuto Foundation for Bioscience (none)
Article History
Received: 6 February 2020
Accepted: 26 March 2020
First Online: 15 April 2020
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of Shinshu University School of Medicine (Approval Code: 4088). The requirement of informed consent was waived and an opt-out method was used due to 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.