1. Institute of Applied Health Sciences, University of Aberdeen, NHS Grampian, Aberdeen AB24 3FX, UK
2. Department of Computer Science, University of Cyprus, Nicosia 1678, Cyprus
3. Medical School, Nicosia of University, Nicosia 2408, Cyprus
4. Aretaeio Hospital, 55-57 Andreas Avraamides, Strovolos, Nicosia 2024, Cyprus