The development of candidate composite disease activity and responder indices for psoriatic arthritis (GRACE project)
Philip S Helliwell, Oliver FitzGerald, Jaap Fransen, Dafna D Gladman, Gerald G Kreuger, Kristina Callis-Duffin, Neil McHugh, Philip J Mease, Vibeke Strand, Robin Waxman, Valderilio Feijo Azevedo, Adriana Beltran Ostos, Sueli Carneiro, Alberto Cauli, Luis R Espinoza, John A Flynn, Nada Hassan, Paul Healy, Eduardo Mario Kerzberg, Yun Jong Lee, Ennio Lubrano, Antonio Marchesoni, Helena Marzo-Ortega, Giovanni Porru, Elvia G Moreta, Peter Nash, Helena Raffayova, Roberto Ranza, Siba P Raychaudhuri, Euthalia Roussou, Raphael Scarpa, Yeong Wook Song, Enrique R Soriano, Paul P Tak, Ilona Ujfalussy, Kurt de Vlam, Jessica A Walsh
Annals of the Rheumatic Diseases Jun 2013, 72 (6) 986-991; DOI: 10.1136/annrheumdis-2012-201341