1 Section of Pathological Anatomy, Polytechnic University of the Marche Region, School of Medicine, United Hospitals, Ancona, Italy.
2 Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, USA.
3 Histopathology Core Facility, Niigata University Faculty of Medicine, Niigata, Japan.
4 Department of Pathology and Surgery, Faculty of Medicine, Cordoba University, Cordoba, Spain.
5 Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland.
6 Section of Pathological Anatomy, Polytechnic University of the Marche Region, School of Medicine, United Hospitals, Ancona, Italy. Electronic address: r.montironi@univpm.it.