1. DIANA-Lab, Department of Computer Science and Biomedical Informatics, University of Thessaly, Lamia, Greece
2. Hellenic Pasteur Institute, Athens, Greece
3. Department of Informatics and Telecommunications, National and Kapodistrian University of Athens, Athens, Greece
4. Department of Molecular Biology and Genetics, Democritus University of Thrace, Alexandroupolis, Greece
5. Department of Computer Science and Biomedical Informatics, University of Thessaly, Lamia, Greece