Nazarenko, Olga
Yakunin, Sergii http://orcid.org/0000-0002-6409-0565
Morad, Viktoriia
Cherniukh, Ihor
Kovalenko, Maksym V
Article History
Received: 29 November 2016
Revised: 5 February 2017
Accepted: 12 February 2017
First Online: 14 April 2017
Competing interests
: The authors declare no conflict of interest.