title: The Spectrum and Clinical Significance of Autoantibodies in Rheumatoid Arthritis.
authors.affiliation: Discipline of Rheumatology, Department of Internal Medicine, Universidade do Estado do Rio de Janeiro , Rio de Janeiro , Brazil.
authors.forename: Geraldo da Rocha
authors.initials: Gda R
authors.lastname: Castelar-Pinheiro
authors.affiliation: Discipline of Rheumatology, Department of Internal Medicine, Universidade do Estado do Rio de Janeiro , Rio de Janeiro , Brazil.
authors.forename: Ricardo Machado
authors.initials: RM
authors.lastname: Xavier
keywords: anti-citrullinated protein antibodies; autoantibodies; genome-wide association studies; rheumatoid arthritis; rheumatoid factor