Evaluation of several ultrasonography scoring systems for synovitis and comparison to clinical examination: results from a prospective multicentre study of rheumatoid arthritis
Maxime Dougados, Sandrine Jousse-Joulin, Frederic Mistretta, Maria-Antonietta d'Agostino, Marina Backhaus, Jacques Bentin, Gérard Chalès, Isabelle Chary-Valckenaere, Philip Conaghan, Fabien Etchepare, Philippe Gaudin, Walter Grassi, Désirée van der Heijde, Jérémie Sellam, Esperanza Naredo, Marcin Szkudlarek, Richard Wakefield, Alain Saraux
Annals of the Rheumatic Diseases May 2010, 69 (5) 828-833; DOI: 10.1136/ard.2009.115493