Diagnostic value of anti-fibrinogen citrullinated peptide in rheumatoid arthritis Goitybell Martínez Téllez; Bárbara Torres Rives; Jorge Alexis Gómez Morejón; Hilda Pérez Garay; Antonio Melchor Rodríguez; Jose Ángel Portal Miranda;

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;

Predictive Factors of Severe Behçet's disease: A Longitudinal, Prospective Cohort Followed Between 1981¿2020 Luísa Serpa Pinto; Sara Xavier Pires; Berta Silva; Fátima Farinha; Carlos Vasconcelos; João Araújo Correia;