Text and Data Mining valid from 2020-01-15
Received: 3 March 2019
Accepted: 7 November 2019
First Online: 15 January 2020
Ethics approval and consent to participate
: The ethics committee of Tarbiat Modares University (TMU) approved the study (ethics code: IR.TMU.REC.1396.701). A written informed consent form will be completed for all participants.
: Not applicable.
: The authors declare that they have no competing interests.