1. Foundation for Research and Technology-Hellas (FORTH),Biomedical Research Institute
2. University of Ioannina,Unit of Medical Technology and Intelligent Information Systems,Dept. of Materials Science and Engineering,Ioannina,Greece
3. Ruhr University Bochum,Department of Medical Informatics, Biometry and Epidemiology,Bochum,Germany
4. University Medical Center Rostock,Institute for Biostatistics and Informatics in Medicine and Ageing Research
5. University of Heidelberg,Medical Clinic V, Mannheim Medical Faculty,Mannheim,Germany
6. University of Heidelberg,Mannheim Institute of Public Health, Social and Preventive Medicine, Medical Faculty Mannheim,Mannheim,Germany