In Silico Oncology and In Silico Medicine Group, Institute of Communication and Computer Systems, National Technical University of Athens, Athens, Greece.|In Silico Oncology and In Silico Medicine Group, Institute of Communication and Computer Systems, National Technical University of Athens, Athens, Greece.|Institute of Pathology, University of Saarland, Homburg (Saar), Germany.|Institute of Pathology, University of Saarland, Homburg (Saar), Germany.|Philips Research, Hamburg, Germany.|Philips Research, Hamburg, Germany.|Department of Nuclear Medicine, University of Saarland, Homburg (Saar), Germany.|Department of Radiotherapy and Radiation Oncology, University of Saarland, Homburg (Saar), Germany.|Institute of Pathology, University of Saarland, Homburg (Saar), Germany.|In Silico Oncology and In Silico Medicine Group, Institute of Communication and Computer Systems, National Technical University of Athens, Athens, Greece.