Funding for this research was provided by:
Region Skåne (48451)
Article History
First Online: 25 June 2019
Conflict of interest
: Dr Unnerbäck reports grants from Region Skåne, during the conduct of the study. Mr Ottesen has nothing to disclose. Dr Reinstrup has nothing to disclose.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the Lund University research committee (2014/403) and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.