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About the article
Published Online: 2018-10-16
Published in Print: 2019-01-28
Research funding: Funding for the CFS/ME biobank and thematic register data sampling was received from the Norwegian National Health directory.
Conflict of interest: The authors report no conflicts of interest in this work.
Informed consent: All participants in this study received information about the study and gave their consent to attend.
Ethical approval: Regional Ethical Committee (ref REK 2011/473, and REK South-East, ref: 2017/375) has approved the current study.
Author contributions: All authors were involved in planning and design of the study. EBS and SA were responsible for data collection. LS, EBS, AMM and LSN were responsible for data analysis. All authors were involved in drafting and revising of the manuscript.
Citation Information: Scandinavian Journal of Pain, Volume 19, Issue 1, Pages 61–72, ISSN (Online) 1877-8879, ISSN (Print) 1877-8860, DOI: https://doi.org/10.1515/sjpain-2018-0095.