Funding for this research was provided by:
Chi Mei Medical Center (CMFHR10991)
Received: 28 June 2020
Accepted: 2 September 2020
First Online: 11 September 2020
Ethics approval and consent to participate
: This study was approved by the institutional review board of the Chi Mei Medical Center. Informed consent from the patients was waived because this study is retrospective, and it contains de-identified information, which does not affect the rights and welfare of the patients.
: Not applicable.
: All authors denied any financial and non-financial competing interests.