1. Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, USA
2. Berenson-Allen Center for Noninvasive Brain Stimulation, Beth Israel Deaconess Medical Center, Boston, MA, USA
3. Harvard Medical School, Boston, MA, USA
4. Department of Neurology, University of Turku, Turku, Finland
5. Division of Clinical Neurosciences, Turku University Hospital, Turku, Finland
6. Department of Neurology, Movement Disorders and Neuromodulation Unit, Charité – Universitätsmedizin, Berlin, Germany