1 Department of Neurology, Christian Doppler Klinik, University Hospital Paracelsus Medical University, Salzburg, Austria.
2 Institute of Public Health, Medical Decision Making and Health Technology Assessment, University for Health Sciences, Medical Informatics and Technology, UMIT, Hall in Tyrol, Austria.
3 Department of Neurology, Inje University School of Medicine, Haeundae Paik Hospital, Busan, South Korea.