Funding for this research was provided by:
Háskóli Íslands (HI17080029, HI17120065)
Text and Data Mining valid from 2019-07-12
First Online: 12 July 2019
Compliance with Ethical Standards
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. IRB approval: VSNb2016030001/03.01.
: Informed consent was obtained from all individual participants included in the study.