1 Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York.
2 Department d'Anatomie et Cytologie Pathologiques, CHU Albert Michallon, University Joseph Fourier; INSERM U823 Institut Albert Bonniot;Grenoble, France.
3 Department of Pathology, University of Maryland, Baltimore, Maryland.
4 Institute of Pathology, University Medical Centre Mannheim, University of Heidelberg, Mannheim, Germany.
5 Department of Histopathology, Royal Brompton and Harefield NHS Foundation Trust and Imperial College, London, UK.