1 Institute of Pathology, University Medical Center Schleswig-Holstein, Luebeck Site, Ratzeburger Allee 160, 23562, Luebeck, Germany. franz-friedrich.dressler@charite.de.
2 Institute of Pathology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany. franz-friedrich.dressler@charite.de.
3 Institute of Pathology, University Medical Center Schleswig-Holstein, Luebeck Site, Ratzeburger Allee 160, 23562, Luebeck, Germany.
4 Institute of Pathology, Research Center Borstel, Leibniz Lung Center, Parkallee 1-40, 23845, Borstel, Germany.
5 Department of Otorhinolaryngology, University of Luebeck and University Hospital Schleswig-Holstein, Campus Luebeck, Luebeck, Germany.