Funding for this research was provided by:
Shiraz University of Medical Sciences (SUMS.15918)
Received: 12 May 2019
Accepted: 27 August 2019
First Online: 2 September 2019
Ethics approval and consent to participate
: This study was conducted in accordance with the International Declaration of Helsinki. The study protocol was approved by the Ethics Committee of Shiraz University of Medical Sciences under the code 15918. All participants were informed both verbally and through written information of their right to withdraw from the study at any time. All participants gave their written consent to participate in the study.
: Not applicable.
: The authors declare that they have no competing interests.