Šņepste, Ilze
Šķipars, Vilnis
Krivmane, Baiba
Brūna, Lauma
Ruņģis, Dainis http://orcid.org/0000-0001-5173-2912
Funding for this research was provided by:
Latvijas Zinātnes Padome (284/2012)
Article History
Received: 31 January 2018
Revised: 22 May 2018
Accepted: 2 July 2018
First Online: 11 July 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.