1. Department of Neurology; Tampere University Hospital; Tampere Finland
2. Faculty of Social Sciences; University of Tampere; Tampere Finland
3. UKK Institute for Health Promotion; Tampere Finland
4. Department of Neurology; Vaasa Central Hospital; Vaasa Finland
5. Department of Neurology; Seinäjoki Central Hospital; Seinäjoki Finland
6. Department of Neurology; University of Tampere and Tampere University Hospital; Tampere Finland