1. Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
2. Department of Neurology, Department of Neuroscience, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, Leon and Norma Hess Center for Science and Medicine, New York, NY, USA
3. Departments of Medicine and Cell Biology, University of Massachusetts, Worcester, MA, USA
4. CHDI Management/CHDI Foundation, Los Angeles, CA, USA
5. BioFocus DPI Limited, Chesterford Research Park, UK
6. Independent consultant