Funding for this research was provided by:
the Swedish Health Institute
Received: 20 January 2016
Accepted: 21 January 2018
First Online: 30 January 2018
Ethics approval and consent to participate
: The project was approved by the Regional Ethical Review Board in Lund (ExternalRef removed) 2013–06-19 (DNr 213,326). Informed consent has been obtained in writing from all involved, both patients and staff.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.