1. PDMFC, R. Fradesso da Silveira, 4-1B, 1300-609 Lisboa, Portugal
2. Department of Informatics, Ionian University, Plateia Tsirigoti 7, 49100 Corfu, Greece
3. Hospital do Espírito Santo de Évora, EPE, Largo Senhor da Pobreza, 7000-811 Évora, Portugal
4. Centre for Secure, Intelligent and Usable Systems (CSIUS), School of Sport & Health Sciences, University of Brighton, Brighton BN2 4AT, UK