Nilsson, Abraham
Alkner, Björn
Wetterlöv, Patrick
Wetterstad, Stefan
Palm, Lars
Schilcher, Jörg
Funding for this research was provided by:
Forskningsrådet i Sydöstra Sverige (FORSS-706601)
Linköpings Universitet (LIO-434231)
Article History
Received: 20 August 2018
Accepted: 26 December 2018
First Online: 5 January 2019
Ethics approval and consent to participate
: The study was approved by the regional ethical review board in Linköping (DNR 2017/514–31). Informed consent was waived by the ethical review board because of the retrospective nature of the study.
: 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.