Funding for this research was provided by:
The Health and Medical Care Committee of Region V?stra G?taland (VGFOUREG-392071, VGFOUREG-476621)
Article History
Received: 9 October 2018
Accepted: 21 December 2018
First Online: 28 January 2019
Compliance with ethical standards
:
: The study complies with the Declaration of Helsinki, and ethics approval was obtained from the Regional Ethical Review Board in Gothenburg (ID: 344-14).
: The authors declare that they have no conflict of interest.