Funding for this research was provided by:
Ferdowsi University of Mashhad (33574)
Text and Data Mining valid from 2020-05-01
Received: 28 September 2019
Accepted: 18 March 2020
First Online: 1 May 2020
Ethics Approval and Consent to Participate
: The ethical approval for this study was issued by the Committee on Research Ethics of Ferdowsi University of Mashhad, based on the Ethical Guidelines of Research from The Ministry of Science, Research and Technology of Iran, and in accordance with the Declaration of Helsinki.
: No identifying patient information is included in this report.
: The authors declare that they have no competing interests.