EULAR recommendations for conducting clinical studies and/or clinical trials in systemic vasculitis: focus on anti-neutrophil cytoplasm antibody-associated vasculitis
Bernhard Hellmich, Oliver Flossmann, Wolfgang L Gross, Paul Bacon, Jan Willem Cohen-Tervaert, Loic Guillevin, David Jayne, Alfred Mahr, Peter A Merkel, Heiner Raspe, David G I Scott, James Witter, Hasan Yazici, Raashid A Luqmani
Annals of the Rheumatic Diseases May 2007, 66 (5) 605-617; DOI: 10.1136/ard.2006.062711