Ethics approval and consent for publication
The study was carried out in accordance with the principles of the Declaration of Helsinki. The purpose of the study was explained to patients prior to their enrollment. All participants signed the written informed consent prior to their participation. Patients were free to withdraw from the study at any time. The protocol and patient informed consent form were reviewed and approved by the local Ethics Committee of Shiraz University of Medical Sciences (IR.SUMS.MED.REC.1401.045).