Funding for this research was provided by:
Ministry of Science and Technology, Taiwan (103-2314-B-002-153-MY3)
Received: 4 February 2021
Accepted: 26 May 2021
First Online: 31 May 2021
: The study was performed in accordance with current ethical guidelines (Declaration of Helsinki). The study protocol was approved by the Research Ethics Committee of the National Taiwan University Hospital in Taiwan (202009066RINC), and the need for written informed consent was waived by the Research Ethics Committee of the National Taiwan University Hospital because this was a retrospective study and procedures were adopted to protect and anonymize personal patient information.
: Not applicable.
: The authors declare that they have no competing interests.