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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Calin A., Fries J. F. Striking prevalence of ankylosing spondylitis in "healthy" w27 positive males and females. N Engl J Med. 1975 Oct 23;293(17):835–839. doi: 10.1056/NEJM197510232931701. [DOI] [PubMed] [Google Scholar]
