Correction: Longitudinal Treatment Patterns of Chorea in North American Patients with Huntington’s Disease: Data from Enroll-HD - Erin Furr Stimming; Daniel O. Claassen; Ginny P. Sen; Olga Klepitskaya; Michael Serbin; Hyunwoo Kim; Sean C. Hinton; Dietrich Haubenberger (Neurology and Therapy)