*Park City, Utah, USA; †Faculty of Rehabilitation Medicine, University of Alberta, Edmonton, Alberta, Canada; ‡Department of Clinical Chemistry, Kuopio University Hospital, Kuopio, Finland; and §Ullevål University Hospital, Oslo, Norway
Received for publication January 2003; accepted March 2003.
Supported by Bayer Corporation (Tarrytown, New York) and the Organizing Committee of the 2001 Nordic World Ski Championships. Blood samples were provided by the International Ski Federation.
Hematologic analyses were conducted at Kuopio University Hospital, Kuopio, Finland.
Reprints: James Stray-Gundersen, MD, PhD/Tapio Videman, MD, PhD, Faculty of Rehabilitation Medicine, 3-50 Corbett Hall, University of Alberta, Edmonton, Alberta, T6G 2G4, Canada. E-mail: [email protected] or [email protected]