TY - JOUR AU - Bossini Castillo, Lara María AU - Martín Ibáñez, Javier PY - 2015 UR - https://hdl.handle.net/10481/88784 AB - Introduction: Rheumatoid arthritis (RA) patients can be classified based on presence or absence of anticitrullinated peptide antibodies (ACPA) in their serum. This heterogeneity among patients may reflect important biological differences underlying... LA - eng TI - A genome-wide association study of rheumatoid arthritis without antibodies against citrullinated peptides DO - 10.1136/annrheumdis-2013-204591 ER -