1. Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
2. Rutgers School of Dentistry, New Jersey, USA
3. Department of Oral Medicine, School of Dentistry, Nihon University Tokyo, Tokyo, Japan
4. Faculty of Odontology, Malmö University, Malmö, Sweden
5. Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
6. Wolfson Centre for Age-Related Diseases, Institute of Psychiatry, Psychology & Neurosciences, King’s College London, London, UK
7. Department of Neurology, King’s College London, London, UK