Andreas Agathangelidis; Anastasia Chatzidimitriou; Thomas Chatzikonstantinou; Cristina Tresoldi; Zadie Davis; Véronique Giudicelli; Sofia Kossida; Chrysoula Belessi; Richard Rosenquist; Paolo Ghia; Anton W Langerak; Frédéric Davi; Kostas Stamatopoulos; ERIC, the European Research Initiative on CLL