RESPONDIA. Ibero-American Spondyloarthropaties Registry: Portuguese Group Elsa Sousa, Miguel Sousa, Fernando Pimentel, Ana Filipa Mourão, Ana Rodrigues, Helena Santos, Viana Queiroz, Ana Teixeira, Jaime Branco, Anabela Barcelos

Ranking the importance of their own diseases: A positioning analysis in rheumatic patients and their proxies Aldo Barajas-Ochoa, Elias Kaleb Rojero-Gil, Lilia Patricia Bustamante Montes, Cesar Ramos-Remus

Atlas of axial spondyloarthritis in Spain 2017: Study design and population Marco Garrido-Cumbrera, Victoria Navarro-Compán, Pedro Zarco, Eduardo Collantes-Estévez, David Gálvez-Ruiz, Olta Braçe, Jorge Chacón García, Carles Blanch Mur, Angels Costa Ferrer, Alvaro Hidalgo Vega, Pedro Plazuelo Ramos, Jordi Gratacós Masmitja