Department of Clinical Neurophysiology, Kuopio University Hospital, Finland;
Department of Clinical Neurophysiology, Kuopio University Hospital, Finland;
VTT Informarion Technology, Tampere, Finl;
Department of Clinical Neurophysiology, Kuopio University Hospital, Finland;
Department of Clinical Neurophysiology, Helsinki University Hospital, Jorvi Hospital, Espoo, Finland;
Department of Anesthesiology and Intensive Care, Kuopio University Hospital, Finland;
Department of Otorhinolaryngology,Kuopio University Hospital, Finland;
Department of Anesthesiology and Intensive Care, Kuopio University Hospital, Finland;
Department of Otorhinolaryngology,Kuopio University Hospital, Finland;
Department of Pharmacology and Toxicology, University of Kuopio;