Text and Data Mining valid from 2018-09-14
Received: 10 June 2018
Accepted: 7 September 2018
First Online: 14 September 2018
Ethics approval and consent to participate
: The study was conducted according to the ethical guidelines of the Declaration of Helsinki (the ethical standards of the institutional and national research committee and with the 1964 Helsinki declaration and its later amendments) and was approved by the ethics committee of the Arak University of Medical Sciences (AUMS), Arak, Iran (ExternalRef removed: IRCT20170513033941N22). All participants provided a written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
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