1. Department of Neurology; Aarhus University Hospital; Aarhus C; Denmark
2. Department of Neurology; Odense University Hospital; Odense C; Denmark
3. Department of Neurology; Rigshospitalet; Copenhagen Ø; Denmark
4. Department of Clinical Neurophysiology; Aarhus University Hospital; Aarhus C; Denmark
5. Department of Neurology; Aalborg Hospital; Aalborg C; Denmark
6. Department of Neurology; Glostrup Hospital; Glostrup; Denmark