Funding for this research was provided by:
Svenska Läkaresällskapet (SLS-413081)
Stiftelsen Konung Gustaf V:s 80-årsfond (FAI-2014-0086)
Stiftelsen Professor Nanna Svartz Fond (2016-00147)
Göteborgsregionens Stiftelse för Reumatologisk Forskning (GSFR 2016-04-13)
Rune och Ulla Amlövs Stiftelse för Neurologisk och Reumatologisk Forskning (2016-092)
Received: 7 December 2017
Accepted: 25 February 2018
First Online: 20 March 2018
Ethics approval and consent to participate
: The procedures were approved by the Ethics Committee of Gothenburg in Sweden, Jan 2008. Informed consent was obtained from all patients.
: Not applicable.
: The authors declare that they have no competing interests.
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