1. Spondylitis: Time for a new name and a new approach to diagnosis;Lancet,1985
2. Seronegative spondyloarthropathies;Arnett;Bull Rheum Dis,1987
3. Measures to assess ankylosing spondylitis: Taxonomy, review and recommendations;Bakker;J Rheumatol,1993
4. Cost effectiveness of group physical therapy compared to individualized therapy in ankylosing spondylitis. A randomized controlled trial;Bakker;J Rheumatol,1994
5. Use of dynamic magnetic resonance imaging with fast imaging in the detection of early and advanced sacroiliitis in spondyloarthropathy patients;Braun;Arthritis Rheum,1994