The association between interleukin-6 promoter polymorphisms and rheumatoid arthritis by ethnicity: A meta-analysis of 33 studies Blanca T. Pacheco-Soto; Leonardo M. Porchia; William C. Lara-Vazquez; Enrique Torres-Rasgado; Ricardo Perez-Fuentes; M. Elba Gonzalez-Mejia;

Clinical, Patient-Reported, and Ultrasound Outcomes from an Open-Label, 12-week Observational Study of Certolizumab Pegol in Spanish Patients with Rheumatoid Arthritis with or without Prior Anti-TNF Exposure Francisco J. Blanco; Esteban Rubio-Romero; Raimon Sanmartí; César Díaz-Torné; Pablo Talavera; Jochen Dunkel; Esperanza Naredo;

Study of the impact of the inclusion of global pain and functional capacity assessment in the definition of remission and its maintenance for rheumatoid arthritis. Aims and methodology Alejandro Balsa; Daniel Seoane-Mato; Marta Domínguez-Álvaro; Mercedes Alperi; Virginia Ruiz-Esquide; Javier Bachiller-Corral; Federico Díaz-González;