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van der Heijde D, Bellamy N, Calin A, Dougados M, Askim Kahn M et al: Preliminary core sets for endpoints in ankylosing spondylitis. J Rheumatol 1997; 24: 2225 - 9. Du kan lese abstractet her.
Cronstedt H, Waldner A, Stenstrøm CH: The Swedish version of the Bath Ankylosing Spondylitis Functional Index. Reliability and validity. Scand J Rheumatol 1999; 28 (suppl. 111): 1 -9. Du kan lese abstractet her .
Frändin K, Sonn U, Svantesson U, Grimby G: Functional balance tests in 76-year-olds in relation to performance, activities and daily living and platform testes. Scand J Rehab Med 1995; 27: 231-241. Du kan lese abstractet her .
Waldner A, Cronstedt H, Stenstrøm CH: The Swedish version of the Bath Ankylosing Spondylitis Disease Activity Index. Reliability and valididty. Scand J Rheumatol 1999; 28 (suppl 111): 10 - 16. Du kan lese abstractet her.