%0 Journal Article %T Validation of a Prediction Rule for the Diagnosis of Rheumatoid Arthritis in Patients with Recent Onset Undifferentiated Arthritis %A Zaida Bedran %A Cristian Quiroz %A Javier Rosa %A Luis J. Catoggio %J International Journal of Rheumatology %D 2013 %I Hindawi Publishing Corporation %R 10.1155/2013/548502 %U http://dx.doi.org/10.1155/2013/548502