Ethics approval and consent to participate
This study was approved by the regional ethics committee of Tabriz University of Medical Sciences, Tabriz, Iran with No. IR.TBZMED.REC.1399.383 and registered in IRCT with IRCT registration number: IRCT20121010011067N5. Written informed consent was obtained from each patient’ relatives. I confirm that all methods were carried out in accordance with relevant guidelines and regulations. Informed consent have been achieved from all subjects and/or their legal guardian(s) —for both study participation AND publication of identifying information/images in an online open-access publication (when applicable). All procedures in the study involving human participants were performed in accordance with the ethics standards of the institutional and national research committee and with the Helsinki Declaration and its later amendments or comparable ethics standards.