Received: 4 November 2020
Accepted: 11 May 2021
First Online: 24 May 2021
: The study was approved by the Ethics Committee of Bushehr University of Medical Sciences (ref. No. B-91–14-2). This study was conducted in agreement with the Declaration of Helsinki and Iranian national guidelines for ethics in research. Written informed consent was obtained from all participants prior to study enrolment. Participation was voluntary, and each participant could withdraw consent at any time without any consequence. Data collected were stored in a re-identifiable form by national ID code.
: Not applicable.
: The authors declare that they have no competing interests.