Patients with ankylosing spondylitis have increased sick leave–a registry-based case-control study over 7 yrs.
Strömbeck B, Jacobsson LT, Bremander A, Englund M, Heide A, Turkiewicz A, Petersson IF.
Rheumatology (Oxford). 2009 Mar;48(3):289-92. doi: 10.1093/rheumatology/ken497. Epub 2009 Jan 22.PMID: 19164425
