Frequency of ANA/DFS70 in relatives of patients with rheumatoid arthritis compared to patients with rheumatoid arthritis and a healthy population, and its association with health status Verónica Romero-Álvarez; Diana Alejandra Acero-Molina; Adriana Beltrán-Ostos; Juan Manuel Bello-Gualteros; Consuelo Romero-Sánchez;

The Value of a Negative Antinuclear Antibody (ANA) Test: An Often Forgotten Result Adrian Y.S. Lee;

Frequency of positive ANCA test in a population with clinical symptoms suggestive of autoimmune disease and the interference of ANA in its interpretation Consuelo Romero-Sánchez; Mario Benavides-Solarte; Isabel Galindo-Ibáñez; Ana Isabel Ospina-Caicedo; Viviana Parra-Izquierdo; Lorena Chila-Moreno; Amanda Villa; María Consuelo Casas-Gómez; Ignacio Angarita; Wilson Bautista-Molano; Verónica Romero-Álvarez; Juan Manuel Bello-Gualtero;