Chatzikonstantinou, Thomas Kapetanakis, Anargyros Scarfo, Lydia and Karakatsoulis, Georgios Allsup, David Alonso Cabrero, Alejandro Andres, Martin Antic, Darko Baile, Monica and Baliakas, Panagiotis Bron, Dominique Capasso, Antonella and Chatzileontiadou, Sofia Cordoba, Raul Correa, Juan-Gonzalo and Cuellar-Garcia, Carolina De Paoli, Lorenzo De Paolis, Maria Rosaria Del Poeta, Giovanni Demosthenous, Christos Dimou, Maria Donaldson, David Doubek, Michael Efstathopoulou, Maria and Eichhorst, Barbara El-Ashwah, Shaimaa Enrico, Alicia and Espinet, Blanca Farina, Lucia Ferrari, Angela Foglietta, Myriam Frederiksen, Henrik Furstenau, Moritz Garcia-Marco, Jose A. Garcia-Serra, Rocio Gentile, Massimo Gimeno, Eva and Glenthoj, Andreas da Silva, Maria Gomes Gutwein, Odit and Hakobyan, Yervand K. Herishanu, Yair Angel Hernandez-Rivas, Jose and Herold, Tobias Innocenti, Idanna Itchaki, Gilad Jaksic, Ozren Janssens, Ann Kalashnikova, Olga B. Kalicinska, Elzbieta Karlsson, Linda Katharina Kater, Arnon P. Kersting, Sabina Labrador, Jorge Lad, Deepesh Laurenti, Luca and Levin, Mark-David Lista, Enrico Lopez-Garcia, Alberto and Malerba, Lara Marasca, Roberto Marchetti, Monia Marquet, Juan Mattsson, Mattias Mauro, Francesca R. Milosevic, Ivana and Miras, Fatima Morawska, Marta Motta, Marina Munir, Talha and Murru, Roberta Niemann, Carsten U. Rodrigues, Raquel Nunes and Olivieri, Jacopo Orsucci, Lorella Papaioannou, Maria and Arturo Pavlovsky, Miguel Piskunova, Inga Popov, Viola Maria and Quaglia, Francesca Maria Quaresmini, Giulia Qvist, Kristian and Reda, Gianluigi Rigolin, Gian Matteo Ruchlemer, Rosa and Saghumyan, Gevorg Shrestha, Amit Simkovic, Martin Spacek, Martin Sportoletti, Paolo Stanca, Oana Stavroyianni, Niki and Tadmor, Tamar Te Raa, Doreen Tonino, Sanne H. Trentin, Livio Van der Spek, Ellen van Gelder, Michel van Kampen, Roel Varettoni, Marzia Visentin, Andrea Vitale, Candida and Wasik-Szczepanek, Ewa Wrobel, Tomasz Yanez San Segundo, Lucrecia and Yassin, Mohamed Coscia, Marta Rambaldi, Alessandro and Montserrat, Emili Foa, Robin Cuneo, Antonio Stamatopoulos, Kostas Ghia, Paolo, COVID-19 severity and mortality in patients with CLL: an update of the international ERIC and Campus CLL study, Leukemia Research, (35), 3444-3454, 2021, SPRINGERNATURE, 0145-2126