Article History
Received: 12 January 2018
Accepted: 1 June 2018
First Online: 2 June 2018
Compliance with ethical standards
:
: All procedures performed in the current study were in accordance with the ethical standards of the Kaunas Regional Biomedical Research Ethics Committee and with the 1964 Helsinki Declaration and its later amendments. Informed consent was obtained from all individual participants included in the study.
: Informed consent was obtained from all individual participants included in the study.
: The authors declare that they have no conflict of interest.