Funding for this research was provided by:
Javna Agencija za Raziskovalno Dejavnost RS
Received: 26 June 2018
Accepted: 31 January 2019
First Online: 13 February 2019
Ethics approval and consent to participate
: This study was approved by the National Medical Ethics Committee of the Republic of Slovenia in 2016 (Number 0120–528/2016–2; approved 10.11.2016).
: Not applicable.
: The authors declare that they have no competing interests.
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