From the Norwegian Centre for Movement Disorders (K.F.P., G.A.); Department of Neurology (K.F.P., G.A.) and Memory Clinic (K.F.P., G.A.), Stavanger University Hospital; Network for Medical Sciences (J.P.L.), University of Stavanger; and Department of Neurology (O.-B.T.), Haukeland University Hospital, Bergen, Norway. (At 2017-02-21)
