1. The Comparative Health Outcomes (GFG), Policy, and Economics Institute, Department of Pharmacy, University of Washington, Seattle, WA and HCD Economics, Daresbury; Huntington's Disease Centre (GFG, LRM, SM, IRS), UCL Queen Square Institute of Neurology, London, United Kingdom; The University of Iowa Health Care (SJT), Iowa City, IA; European Huntington Association (JDL), Moerbeke Waas, Belgium; Clinical Department (AA), CHDI Management/CHDI Foundation, Princeton, NJ; Department of Neurology (JLH),...