Funding for this research was provided by:
Reumatikerförbundet
Västerbotten Läns Landsting (SE)
Norrbottens läns landsting
Reumatikerdistriktet i Västerbotten
Borgerskapet fund in Umeå
Article History
Received: 23 March 2018
Revised: 3 June 2018
Accepted: 28 June 2018
First Online: 18 July 2018
Compliance with ethical standards
: The study was approved by the Regional Ethics Committee at the University Hospital, Umeå (Dnr 07-173 and 2012-107-32M), and was performed in accordance with the Declaration of Helsinki. Informed consent was obtained from all subjects in accordance with the Regional Ethics approvals.
: LL received remuneration for educational activities by Pfizer and Bristol Myers Squibb and has participated in advisory board arranged by Pfizer. BS and SWJ has nothing to disclose.