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APA Citation
Sundström, P., Nyström, L., & Forsgren, L. (2003). incidence (1988–97) and prevalence (1997) of multiple sclerosis in Västerbotten County in northern Sweden. Journal of neurology, neurosurgery and psychiatry, 74(1), 29–32. http://access.bl.uk/ark:/81055/vdc_100135166076.0x000036