THE CLINICAL SPECTRUM OF PATIENTS WITH INFLAMMATORY BACK PAIN AND PERIPHERAL ARTHRITIS OF THE LOWER-LIMBS - HIGH-FREQUENCY OF UNDIFFERENTIATED SPONDYLOARTHROPATHY
J. Brandt et al., THE CLINICAL SPECTRUM OF PATIENTS WITH INFLAMMATORY BACK PAIN AND PERIPHERAL ARTHRITIS OF THE LOWER-LIMBS - HIGH-FREQUENCY OF UNDIFFERENTIATED SPONDYLOARTHROPATHY, Arthritis and rheumatism, 40(9), 1997, pp. 199-199