DOI: 10.1542/peds.2009-0072 ; originally published online October 12, 2009; 2009;124;1267 Pediatrics Cassie Ross, Neil A. Goldenberg, Dana Hund and Marilyn J. Manco-Johnson Children on Prophylaxis Athletic Participation in Severe Hemophilia: Bleeding and Joint Outcomes in http://pediatrics.aappublications.org/content/124/5/1267.full.html located on the World Wide Web at: The online version of this article, along with updated information and services, is of Pediatrics. All rights reserved. Print ISSN: 0031-4005. Online ISSN: 1098-4275. Boulevard, Elk Grove Village, Illinois, 60007. Copyright © 2009 by the American Academy published, and trademarked by the American Academy of Pediatrics, 141 Northwest Point publication, it has been published continuously since 1948. PEDIATRICS is owned, PEDIATRICS is the official journal of the American Academy of Pediatrics. A monthly by guest on May 16, 2013 pediatrics.aappublications.org Downloaded from