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Restrictive pulmonary function is more prevalent in patients with ankylosing spondylitis than in matched population controls and is associated with impaired spinal mobility: a comparative study
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* Corresponding author: Gunnhild Berdal gunnhild.berdal@diakonsyk.no
Arthritis Research & Therapy 2012, 14:R19 doi:10.1186/ar3699