Clinical features and course of ankylosing spondylitis; as seen in a follow-up of 222 hospital referred cases
- PMID: 13559940
- PMCID: PMC1007035
- DOI: 10.1136/ard.17.2.209
Clinical features and course of ankylosing spondylitis; as seen in a follow-up of 222 hospital referred cases
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