Prevalence of latent tuberculosis determined using the Purified Protein Derivative (PPD) test in adult patients with rheumatoid arthritis receiving biotechnological therapy Claudia Mora; Alirio Rodrigo Bastidas Goyes; Jonnatan Patiño; Juan David Vera; Adriana Beltrán; Catalina Mutis; Oscar Ricardo Barón;

Cost-effectiveness analysis of the early versus established phase clinical approach in a cohort of patients with rheumatoid arthritis in a fourth level health care institution in Colombia Carolina Sarmiento-Peña; Gerardo Quintana-López;

Short communication: Differences in clinical outcomes according to the healthcare regime in Colombian patients with rheumatoid arthritis Julián E. Barahona-Correa; Jorge Flórez-Suárez; Mateo Rodríguez-Parra; Karen Ramírez; Paola Coral-Alvarado; Paul Méndez-Patarroyo; Gerardo Quintana-López;