Funding for this research was provided by:
Ferdowsi University of Mashhad (34297/3)
Text and Data Mining valid from 2019-12-04
Received: 15 June 2019
Accepted: 21 October 2019
First Online: 4 December 2019
Compliance with ethical standards
: This article does not contain any studies with human participants or animals performed by any of the authors.
: Mehrdad Ghiasvand has no conflict of interest. Ali Makhdoumi has no conflict of interest. Maryam M. Matin has no conflict of interest. Jamil Vaezi has no conflict of interest.