Lara Bossini-Castillo*, Carmen P Simeon, Lorenzo Beretta, Jasper Broen, Madelon C Vonk, José L Callejas, Patricia Carreira, Luis Rodríguez-Rodríguez, Rosa García-Portales, Miguel A González-Gay, Ivan Castellví, María T Camps, Carlos Tolosa, Esther Vicente-Rabaneda, María V Egurbide, the Spanish Scleroderma Group, Annemie J Schuerwegh, Roger Hesselstrand, Claudio Lunardi, Jacob M van Laar, Paul Shiels, Ariane Herrick, Jane Worthington, Christopher Denton, Timothy RDJ Radstake, Carmen Fonseca and Javier Martin