1. Department of Biomedical Informatics, Ohio State University Wexner Medical Center, Columbus, OH
2. Parent Project Muscular Dystrophy, Hackensack, NJ, USA
3. Acaster Lloyd Consulting Ltd, London, UK
4. University of Michigan Medical School, Ann Arbor, MI, USA
5. Department of Health, Behavior and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA