Received: 4 December 2019
Accepted: 8 March 2021
First Online: 24 March 2021
: The study protocol was approved by the Institutional Review Board (IRB) of Kurdistan University of Medical Sciences, Iran, and the IRB follows the stipulated clauses of the Declaration of Helsinki. Furthermore, the Ethics Committee of Kurdistan University of Medical Sciences approved this study (ethics code: IR.MUK.REC.1394.175). This committee also follows the required principles of the Declaration of Helsinki. Informed consent was obtained from the participants prior to enrollment, and ethical principles such as confidentiality and the right of withdrawal at any given time were also explained. They were all asked to participate in the study and to provide written consent to confirm the participation in the study.
: Not applicable.
: The authors declare that they have no competing interests.