Received: 12 March 2020
Accepted: 23 July 2020
First Online: 5 August 2020
Ethics approval and consent to participate
: The present study followed all standards for ethics with regard to experimentation and research. The institutional review board of National Taiwan University Hospital approved our study (approval number: 201901119RINA) and waived the informed consent requirement due to the retrospective design of the study.
: Not applicable.
: The authors declare that they have no competing interests.