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Association With Hemophilia (Factor XI Deficiency) in a Football Player

Peter Jokl, MD; John Federico, MD

JAMA. 1977;237(20):2215-2216.

Abstract
A case report of an outstanding college football halfback with partial factor XI deficiency, recurrent ecchymosis, and myositis ossificans is reviewed. The association of multiple areas of myositis ossificans and partial clotting-factor deficiency has not been noted in the past. The importance of considering this diagnosis in participants in contact sports with the above findings is emphasized.

(JAMA 237:2215-2216, 1977)

Author Affiliations
From the Section of Orthopedic Surgery (Dr Jokl) and the Section of Pediatrics (Dr Federico), Yale University School of Medicine, New Haven, Conn.

Footnotes
Reprint requests to the Section of Athletic Medicine, Yale University Health Service, 17 Hillhouse Ave, New Haven, CT 06520 (Dr Jokl).

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