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Article History

Received: 5 December 2017

Accepted: 14 August 2018

First Online: 6 September 2018

Ethics approval and consent to participate

: The study had been approved by the Ethics Committee of Tabriz University of Medical Sciences. Ethical Number: TBZMED.REC.1394.1169. Prior to the invitation of the participants leading author provided a short presentation of the project for potential participants during the series of office meetings. Given the nature of the study and considering the target population who were adults, were not vulnerable population, were mentally and physically healthy the type of the informed consent was optional by the ethics committee. Informed consent was obtained from all participants verbally; an attachment file was sent to potential participants along with invitation letter. An introduction to the study, objectives, ethical issues, questions, and short personal information of researchers were provided in the attached file (Additional file InternalRef removed). Each participant who was willing to participate completed personal brief information form at the beginning of the sessions.

: Not applicable.

: The authors declare that they have no competing interests.

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