Factors associated with the use of tumor necrosis factor alpha inhibitors in a population of Colombian patients with spondyloarthritis Luis Fernando Pinto-Peñaranda; Andrés Felipe Echeverri-García; Mauricio Restrepo-Escobar; María Fernanda Álvarez Barreneche; Alejandro Hurtado; Javier D. Márquez-Hernández;

The coexistence of rheumatoid arthritis and ankylosing spondylitis: Case series and literature review Hanene Lassoued Ferjani; Ben Ayed Hiba; Dorra Ben Nessib; Dhia Kaffel; Kaouther Maatallah; Wafa Hamdi;

Design and implementation of clinical care centres for spondyloarthritis. A benchmark care and disease model in chronic pathologies Wilson Bautista-Molano; Paul Méndez-Patarroyo; Helbert Orlando Arévalo Roa; Gerardo Quintana-López;