1. School of Clinical and Rehabilitation Sciences, Northeastern University , 360 Huntington Ave, Boston, MA 02115 , USA
2. Division of Cardiology, Department of Medicine, Tufts Medical Center , Boston, MA 02111 , USA
3. Tufts University School of Medicine , Boston, MA 02111 , USA
4. Division of Sports Medicine, Boston Children’s Hospital , Boston, MA 02115 , USA
5. Health Services, Brown University , Providence, RI 02906 , USA
6. University of New England College of Medicine , Biddeford, ME 04005 , USA
7. University of Massachusetts Athletics , Amherst, MA 01003 , USA
8. Department of Sports Medicine, Massachusetts General Hospital , Boston, MA 02114 , USA