Received: 2 April 2021
Accepted: 18 June 2021
First Online: 6 July 2021
: This study was performed after the approval of the study by the ethical committee of Shiraz University of Medical Sciences in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments (Approval ID: IR.SUMS.REC.1398.161). All methods in this retrospective study with human participants were carried out in accordance with the relevant guidelines and regulations. The need for written informed consent was waived by Shiraz University of Medical Sciences ethics committee due to retrospective nature of the study.
: Not applicable.
: The authors declare that they have no competing interests.