Affiliation: | Registrar, Department of Neurology, Auckland Hospital, Auckland.;Neurologist, Associate Professor of Medicine, Department of Neurology, Christchurch Hospital, Christchurch, New Zealand;Visiting Neurologist, Department of Neurology, Christchurch Hospital, Christchurch, New Zealand;Neurologist, Department of Neurology, Christchurch Hospital, Christchurch, New Zealand |