Hatakeyama, Yutaka
Horino, Taro http://orcid.org/0000-0003-0695-7981
Matsumoto, Tatsuki
Terada, Yoshio
Okuhara, Yoshiyasu
Article History
Received: 8 February 2021
Accepted: 19 April 2021
First Online: 5 June 2021
Declarations
:
: The authors have declared that no conflict of interest exists.
: All procedures performed this study were in accordance with the ethical standards of and approved by the ethical review board of Kochi Medical School (approval No. 23-15) and were conducted in accordance with the 1964 Helsinki Declaration and its later amendments.
: All patient data were obtained from the hospital’s central clinical data warehouse (the Retrieval System for Open Medical Analysis 2 warehouse) with general consent from patients through the opt-out policy of the Kochi Medical School Hospital.