Received: 11 May 2020
Accepted: 14 December 2020
First Online: 7 January 2021
Ethics approval and consent to participate
: Ethical approval for this retrospective study was provided by the Institutional Review Board of Catholic Medical Center (IRB UC19RASI0149). The administrative permissions and licenses were acquired by our team to access the data used in our research. Consent to participate is not applicable.
: Not applicable.
: The authors declare that there are no conflicts of interest.