California:
  University of California, San Francisco
  San Francisco, CA

Colorado:
  Colorado State University
  Ft. Collins, CO

  Vail Valley Medical Center
  Vail, CO

Massachusetts:
  Boston Children's Hospital
  Harvard School of Public Health
  Boston, MA

Michigan:
  Michigan State University
  E. Lansing, MI

Minnesota:
  Mayo Clinic
  Rochester, MN

New York:
  Columbia University
  New York City, NY

Pennsylvania:
  University of Pittsburgh
  Pittsburgh, PA

Texas:
 
Univeristy of Texas Health Science Center
  Houston, TX

Wisconsin:
  University of Wisconsin
  Madison, WI

Australia:
  University of Melbourne
  Melbourne, Australia

Norway:
  University of Oslo
  Oslo Sports Trauma Research Center