Funding for this research was provided by:
Swedish Institute (-)
Received: 11 September 2018
Accepted: 27 November 2019
First Online: 3 December 2019
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of the Faculty of Health Sciences, Klaipeda University. The permission No. 46-SL-1. Written informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.