Text and Data Mining valid from 2019-08-01
Received: 26 January 2019
Accepted: 27 June 2019
First Online: 1 August 2019
Ethics approval and consent to participate
: The Ethics Committee of Alborz University of Medical Sciences approved the study. All participants signed the written consent forms. All participations were assured regarding their privacy.
: Not applicable.
: The authors declare that they have no competing interests.