1. Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts;
2. Baylor College of Medicine, Houston, Texas;
3. Parent Project Muscular Dystrophy, Hackensack, New Jersey;
4. Children’s Hospital Colorado, Aurora, Colorado;
5. University of East London, London, United Kingdom;
6. University of Iowa, Iowa City, Iowa; and
7. Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio