Castillo Rojas, Jhon Fernando, and Jonnathan Gerardo Ortiz Tejedor. “Rheumatoid Factor and Anti-CCP, Diagnostic Utility and Relationship With the Severity of Rheumatoid Arthritis”. Vive Revista de Investigación en Salud 8, no. 22 (January 22, 2025): 25–38. Accessed November 15, 2026. https://revistavive.org/index.php/revistavive/article/view/562.