Received: 23 November 2017
Accepted: 8 March 2018
First Online: 27 March 2018
Ethics approval and consent to participate
: All participants signed a written informed consent approved by the Institutional Review Board of Tabriz University of Medical Sciences. The study design and protocol was approved by the ethical committee of Tabriz University of Medical Sciences (Project number: 93173). The study has also been registered in Iranian registry of clinical trials (registration number IRCT2014090819082N2- Registered 2014-09-29).
: Not applicable.
: The authors declare that there is no competing of interest.
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