1. Department of Traditional Chinese Medicine, Witten/Herdecke Private University, Witten, Germany
2. Interdisciplinary Center for Clinical Research, Neuroimaging, University Hospital Aachen, Aachen, Germany
3. Department of Neurology, University Hospital Aachen, Aachen, Germany
4. Neuropsychiatric Institute, Prince of Wales Hospital, Randwick, New South Wales, Australia
5. Clinic and Rehabilitation Center Miyazaki, Miyazaki, Japan