[1] Aristotle Univ Thessaloniki, Dept Informat, Artificial Intelligence & Informat Anal Lab, Thessaloniki 54124, Greece
[2] Aristotle Univ Thessaloniki, Sch Med, Dept Pathol, Thessaloniki 54124, Greece
[3] Univ Pisa, Dept Oncol, Div Surg Mol & Ultrastruct Pathol, I-56126 Pisa, Italy
[4] Pisa Univ Hosp, I-56126 Pisa, Italy
[5] Inst Mol Genet & Med, MGM, I-56126 Pisa, Italy
[6] Univ Pisa, Dept Informat, I-56127 Pisa, Italy
[7] Aristotle Univ Thessaloniki, Sch Dent, Dept Endodontol, Thessaloniki 54124, Greece