FRANK C. ARNETT JR., M.D.
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The paper by Cohen and colleagues in this issue of the Annals brings into sharp focus the importance of the association of the histocompatibility antigen, HL-A W27, with the spondylitic group of diseases. Their data show that the prevalence of spondylitis may far exceed the 0.4% previously estimated and may actually approach 1% to 2%, a figure comparable to that for rheumatoid arthritis (1). Another recent study supports this same high frequency of "spondylitis stigmata" in "apparently healthy" W27-positive male blood donors but additionally reports a similar risk for women (2). From these studies it would appear that spondylitis has
ARNETT FC. The Implications of HL-A W27. Ann Intern Med. 1976;84:94–95. doi: 10.7326/0003-4819-84-1-94
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Published: Ann Intern Med. 1976;84(1):94-95.
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Print ISSN: 0003-4819 | Online ISSN: 1539-3704
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