| Disease | collagen disease | 
| Phenotype | C0949690|spondyloarthritis | 
| Sentences | 1 | 
| PubMedID- 26289076 | spondyloarthritis is a group of rheumatic diseases, including ankylosing spondylitis, psoriatic arthritis, and patients with the clinical features of spondyloarthritis according to the european group for the study of spondyloarthritis criteria [1] who do not fulfill criteria for a defined spondyloarthritis and are classified as having undifferentiated spondyloarthritis [2]. | 
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