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APA Citation
Provan, S., Austad, C., Halsaa, V., Hammer, H., Kvien, T., & Uhlig, T. (n.d.). oP0005 Fibromyalgia in patients with rheumatoid arthritis in a 10-year perspective. Annals of the rheumatic diseases, 76, 52. http://access.bl.uk/ark:/81055/vdc_100135143985.0x00005f