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Magrey, M., Khan, M.A. HLA-B27 Homozygosity and Clinical Features of Ankylosing Spondylitis. Curr Rheumatol Rep 12, 309–310 (2010). https://doi.org/10.1007/s11926-010-0118-x
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DOI: https://doi.org/10.1007/s11926-010-0118-x