Received: 21 April 2020
Accepted: 21 November 2020
First Online: 18 February 2021
Ethics approval and consent to participate
: All procedures performed in this study were in accordance with the ethical standards of the “Research Ethics Committee of Shiraz University of Medical Sciences” and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This study was submitted to and approved by the “Research Ethics Committee of Shiraz University of Medical Sciences” with Ethics code IR.SUMS.MED.REC.1395.68.The study was explained for the patients or guardians and informed consent forms were signed by them.
: This manuscript does not contain any personal data, and the consent for publication is applicable.
: The authors declare that they have no competing interests.