Text and Data Mining valid from 2020-03-19
Received: 12 May 2019
Accepted: 11 March 2020
First Online: 19 March 2020
Ethics approval and consent to participate
: The study received ethical approval from the Ethics Committee of Tabriz University of Medical.Sciences (NO: IR.TBZMED.REC.1395.13). We obtained written informed consent from all participants.
: The authors have agreed on the content of the manuscript.
: The authors declare that they have no competing interests.