Text and Data Mining valid from 2019-09-01
Received: 21 September 2018
Revised: 30 January 2019
Accepted: 4 April 2019
First Online: 1 November 2019
COMPLIANCE WITH ETHICAL STANDARDS
: <i>Conflict of interests.</i> The authors declare that they have no conflict of interest.
: <i>Statement of compliance with standards of research involving humans as subjects.</i> All procedures performed in this study were in accordance with the 1964 Helsinki Declaration and its later amendments and were approved by local bioethical committee of the Kharkevich Institute of Information Transmission Problems, Russian Academy of Sciences, Moscow. Informed consent was obtained from all participants involved in the study, signed on their own or by their representative in law (for underage) after providing the information of potential risks, advantages, and type of the upcoming research.