Volozonoka, Ludmila http://orcid.org/0000-0003-0413-1481
Perminov, Dmitry
Korņejeva, Liene
Alkšere, Baiba
Novikova, Natālija
Pīmane, Evija Jokste
Blumberga, Arita
Kempa, Inga
Miskova, Anna
Gailīte, Linda
Fodina, Violeta
Article History
Received: 6 December 2017
Accepted: 12 April 2018
First Online: 23 April 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.