Serum levels of soluble adhesion molecules intercellular adhesion molecule 1, vascular cell adhesion molecule 1, and E-selectin in patients with Wegener's granulomatosis: relationship to disease activity and relevance during followup - Stegeman,C.A.; Tervaert,J.W.; Huitema,M.G.; de Jong,P.E.; Kallenberg,C.G. (Arthritis Rheum, 1994)