Received: 29 March 2021
Accepted: 18 July 2021
First Online: 24 July 2021
: This project was approved by Ethics Committee of Zanjan University of medical sciences (Ethics ID: IR.ZUMS.REC.1398.188). All methods were carried out in accordance with relevant guidelines and regulations and an informed consent was obtained from a parent and/or legal guardian.
: Due to the fact that patients' information is confidential, the consent to publish is not applicable.
: None of the authors has any competing interests.