1. Department of Neurology, Rudolf Magnus Institute of Neuroscience, University Medical Centre Utrecht, Utrecht, The Netherlands
2. Department of Medicine of Karolinska Solna, Clinical Epidemiology Unit, Karolinska Institutet, 17176, Stockholm
3. Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, 17177 Stockholm, Sweden
4. Julius Centre for Health Sciences and Primary Care, University Medical Centre Utrecht, Utrecht, The Netherlands
5. Department of Epidemiology, University Medical Centre Groningen, Groningen, The Netherlands