Efimova, S. S.
Ostroumova, O. S.
Article History
Received: 5 November 2018
Revised: 6 December 2018
Accepted: 10 December 2018
First Online: 26 August 2019
COMPLIANCE WITH ETHICAL STANDARDS
: The authors declare that they have no conflict of interest. This article does not contain any studies involving animals or human participants performed by any of the a-uthors.