RT Conference Proceedings T1 SIMILARITIES AND DIFFERENCES BETWEEN PATIENTS FULFILLING NON-RADIOGRAPHIC AXIAL SPONDYLOARTHRITIS AND UNDIFFERENTIATED SPONDYLOARTHRITIS CRITERIA: RESULTS FROM THE ESPERANZA COHORT A1 Juan Mas, A. A1 Juanola Roura, X. A1 de Miguel Mendieta, E. A1 Collantes Estevez, E. A1 Quevedo Abeledo, J. C. A1 Alonso Blanco-Morales, E. A1 Navarro-Compan, V. A1 ESPeranza Working Grp, PB Bmj publishing group SN 0003-4967 YR 2017 FD 2017-06-01 LK https://hdl.handle.net/10668/25424 UL https://hdl.handle.net/10668/25424 LA en DS RISalud RD Apr 8, 2025