1. European Alliance for Medical and Biological Engineering and Science, 3001 Leuven, Belgium
2. Institute for Language and Speech Processing, Athena Research Center, 67100 Xanthi, Greece
3. Life Supporting Technologies, Universidad Politécnica de Madrid, 28040 Madrid, Spain
4. School of Engineering, University of Warwick, Coventry CV4 7AL, UK
5. Department of Engineering, Università Campus Bio-Medico di Roma, 00128 Rome, Italy
6. School of Medicine, Democritus University of Thrace, 68100 Alexandroupoli, Greece