Article History
Received: 19 June 2020
Revised: 22 August 2020
Accepted: 8 September 2020
First Online: 20 September 2020
Compliance with ethical standards
:
: The authors declared 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 research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Institutional review board at our institution approved this retrospective, cross-sectional study, and the requirement for informed consent was waived.