AUTHOR=Castelar-Pinheiro Geraldo da Rocha , Xavier Ricardo Machado TITLE=The Spectrum and Clinical Significance of Autoantibodies in Rheumatoid Arthritis JOURNAL=Frontiers in Immunology VOLUME=6 YEAR=2015 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2015.00320 DOI=10.3389/fimmu.2015.00320 ISSN=1664-3224