Text and Data Mining valid from 2019-03-21
Received: 31 January 2019
Accepted: 7 March 2019
First Online: 21 March 2019
Compliance with Ethical Standards
: The study protocol was approved by the local ethics committee of Hamadan University of Medical Sciences (IR.UMSHA.REC.1395.506). Written informed consent forms were obtained from all study participants. We confirmed that all methods were performed in accordance with the relevant guidelines and regulations.
: The authors declare that they have no conflict of interest.