1. Inflammatory eye, skin, and bowel disease in spondyloarthritis: genetic, phenotypic, and environmental factors;Brophy;J Rheumatol,2001
2. Ankylosing spondylitis and bowel disease;Rudwaleit;Best Pract Res Clin Rheumatol,2006
3. Prevalence of ankylosing spondylitis and other spondyloarthropathies among patients with inflammatory bowel disease: a population study (the IBSEN study);Palm;J Rheumatol,2002
4. Ileocolonoscopy in seronegative spondylarthropathy;De Vos;Gastroenterology,1989
5. Subclinical involvement of the gut in undifferentiated spondylarthropathies;Mielants;Clin Exp Rheumatol,1989