Prof. Dr. rer. nat. Oliver Schildgen, Head of Molecular Pathology Division, Institute of Pathology, University Hospital of the Private University Witten/ Herdecke, Hospital of the City of Cologne Priv.-Doz. Dr. rer. nat. Verena Schildgen, Private Lecturer for Molecular Pathology, Institute of Pathology, University Hospital of the Private University Witten/ Herdecke, Hospital of the City of Cologne Prof. Dr. med. Michael Brockmann, Director and Chief Pathologist, Institute of Pathology, University Hospital of the Private University Witten/ Herdecke, Hospital of the City of Cologne