Perceived quality of training in musculoskeletal ultrasound in Spanish rheumatology services Juan Molina Collada; Lucía Mayordomo;

Survey to evaluate exposure to environmental factors in patients with rheumatoid arthritis Alexandra Zúñiga; Alba Luz León Álvarez; Luisa Carbal-Reyes; Daniel Rodríguez; Juan-Camilo Díaz; Gloria Vásquez; Diana Castaño;

Evaluation of the psychometric properties of the Functional Ability Scale in children with juvenile idiopathic arthritis Juan Pablo Ford; Enrique Roberto Soriano; Mauro Andreu;