Vladimirovna Afanasyeva, Larisa
Ayushievna Ayushina, Tuyana
Article History
Accepted: 9 May 2019
First Online: 28 May 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The research article ensures objectivity and transparency in research and secures that accepted principles of ethical and professional conduct have been followed. This original research article does not contain any studies with human participants and animals performed by any of the authors.