Shirai, Chikako
Tsuda, Satoru
Tarasawa, Kunio
Fushimi, Kiyohide
Fujimori, Kenji
Nakazawa, Toru https://orcid.org/0000-0002-5591-4155
Article History
Received: 8 November 2020
Accepted: 9 March 2021
First Online: 29 March 2021
Declarations
:
: This study was conducted in accordance with the Declaration of Helsinki and was approved by the research ethics committee of the Tohoku University Graduate School of Medicine, Japan (No. 2019–1-897). This study acquired secondary data from a medical claims database, written informed consent from patients was not required.
: Not applicable.
: The authors declare that they have no competing interests.