Media type: E-Article Title: Comparative Effectiveness of Tocilizumab with either Methotrexate or Leflunomide in the Treatment of Rheumatoid Arthritis Contributor: Narváez, Javier; Díaz-Torné, César; Magallares, Berta; Hernández, Maria Victoria; Reina, Delia; Corominas, Héctor; Sanmartí, Raimon; de la Serna, Arturo Rodriguez; Llobet, Josep Maria; Nolla, Joan M. imprint: Public Library of Science (PLoS), 2015 Published in: PLOS ONE Language: English DOI: 10.1371/journal.pone.0123392 ISSN: 1932-6203 Origination: Footnote: Access State: Open Access