1. HM CINAC, Hospital Universitario HM Puerta del Sur; Móstoles Madrid Spain
2. Research Laboratory of Electronics, Massachusetts Institute of Technology; Cambridge Massachusetts USA
3. Center for Neurology and Hertie Institute for Clinical Brain Research, Department of Neurodegeneration, University of Tübingen; Tübingen Germany
4. German Center for Neurodegenerative Diseases; Tübingen Germany