Funding for this research was provided by:
Unitatea Executiva pentru Finantarea Invatamantului Superior, a Cercetarii, Dezvoltarii si Inovarii (PN-III-P3-3.5-EUK-2016-0015)
Text and Data Mining valid from 2019-08-13
First Online: 13 August 2019
Compliance with Ethical Standards
: The authors declare that they have no conflict of interest.
: We state that this article does not contain any studies with human participants or animals performed by any of the authors.