Effectiveness of intravenous tocilizumab in routine clinical practice in a cohort of Costa Rican patients with rheumatoid arthritis Mauricio Cordero-Alfaro; Carlos León-Céspedes; Allan Ramos-Esquivel;

Treatment of rheumatoid arthritis in patients with chronic kidney disease: A real-world experience Wilmer Gerardo Rojas-Zuleta; Yesith Guillermo Toloza-Pérez; Carolina Becerra Arias; Jorge Donado Gómez; Jeixa Jennifer Canizales Rodríguez; Oscar Jair Felipe Díaz;

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;