Full Professor in Biometry at the University of Thessaly, Volos, Greece, and Primary Investigator/Consultant for Biostatistics and Data Science at the Department of Clinical Chemistry (UKC), Inselspital, University Hospital of the University of Bern, Bern, Switzerland. His research revolves around ROC analysis, Statistical testing/modeling, methods of Agreement, and their applications in Medicine, and Life Sciences disciplines in general.