1. Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
2. Department of Pharmacology and Clinical Neuroscience, Section for Neurology, Umeå University, Umeå, Sweden
3. Department of Clinical Sciences Danderyds Hospital, Karolinska Institutet, Stockholm, Sweden
4. Clinical Epidemiology Unit, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden