Mihaylova, Rositsa
Ahmedova, Anife
Momekova, Denitsa
Momekov, Georgi
Danchev, Nikolay
Funding for this research was provided by:
National Science Fund, Ministry of Education and Science, Bulgaria (DFNI-B02/24)
Article History
Received: 7 December 2018
Accepted: 31 January 2019
First Online: 8 February 2019
Compliance with ethical standards
:
: Rositsa Mihaylova declares that she has no conflict of interest. Anife Ahmedova declares that she has no conflict of interest. Denitsa Momekova declares that she has no conflict of interest. Georgi Momekov declares that he has no conflict of interest. Nikolay Danchev declares that he has no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: For this type of study, formal consent is not required.