1. Department of Health, Behavior and Society, Johns Hopkins School of Public Health, Baltimore, MD, USA
2. Department of Biomedical Informatics, The Ohio State University Wexner Medical Center, Columbus, OH, USA
3. Parent Project Muscular Dystrophy, Hackensack, NJ, USA
4. Duchenne UK, London, UK
5. Duchenne Parent Project Muscular Dystrophys, Amsterdam, NL, Netherlands