Received: 31 March 2020
Accepted: 26 August 2020
First Online: 11 September 2020
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: All procedures performed in these 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. The institutional review board of our hospital approved the study protocol, and all patients gave written informed consent for the research protocol and the procedure.