Article History
Received: 18 July 2018
Accepted: 4 December 2018
First Online: 8 December 2018
Compliance with Ethical Standards
:
: The authors have no conflicts of interest to declare.
: 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 Helsinki declaration and its later amendments or comparable ethical standards. Approval of the Institutional Review Board at the hospital was obtained for this retrospective study.