1. Institute of Pathology and Neuropathology and Comprehensive Cancer Centre; Tübingen University Hospital; Tübingen Germany
2. Department of Onco-Hematology; Unit of Lymphoid Malignancies; Division of Onco-Hematological Medicine; IRCCS San Raffaele Scientific Institute; Milano Italy
3. Department of Cellular and Molecular Pathology; University of Liverpool; Liverpool England