Article History
Received: 4 January 2020
Accepted: 1 June 2020
First Online: 27 July 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
: For this type of study, informed consent is not required, but patients provided informed consent before the operation.