Text and Data Mining valid from 2019-09-03
Received: 15 May 2019
Accepted: 7 August 2019
First Online: 3 September 2019
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board and the Ethics Committee of Tehran University of Medical Sciences, Tehran, Iran. (IR.TUMS.MEDICINE.REC.13964207) and all participants submitted written informed consent.
: “Not applicable”.
: The authors declare that they have no competing interests.