Kim, Injoong
Kang, Hyunkoo
Yoon, Hyun Jung
Chung, Bo Mi
Shin, Na-Young http://orcid.org/0000-0003-1157-6366
Funding for this research was provided by:
Veterans Health Service Medical Center Research Grant (VHSMC 20057)
Article History
Received: 6 July 2020
Accepted: 29 September 2020
First Online: 10 October 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. For this type of study, formal consent is not required.
: For this type of retrospective study, formal consent is not required.