The frequency of non-radiographic axial spondyloarthritis in relation to symptom duration in patients referred because of chronic back pain: results from the Berlin early spondyloarthritis clinic
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| Description | scientific article published on 21 August 2012 |
| Author/s |
author: Denis Poddubnyy |
| Publication date | August 21, 2012 |
| Language | English |
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