1. Research, AC Immune SA , 1015 Lausanne , Switzerland
2. Department of Physiology, Anatomy and Genetics, University of Oxford , Oxford OX1 3PT , UK
3. Department of Neurology and the Massachusetts Alzheimer’s Disease Research Center, Massachusetts General Hospital, Harvard Medical School , Boston, MA 02129 , USA
4. Sean M. Healey & AMG Center for ALS & the Neurological Clinical Research Institute, Massachusetts General Hospital, Harvard Medical School , Boston, MA 02114 , USA