Leukemia, 35(12), 3444-3454. Nature Publishing Group Leukemia Chatzikonstantinou, Thomas; Kapetanakis, Anargyros; Scarfò, Lydia; Karakatsoulis, Georgios; Allsup, David; Cabrero, Alejandro Alonso; Andres, Martin; Antic, Darko; Baile, Mónica; Baliakas, Panagiotis; Bron, Dominique; Capasso, Antonella; Chatzileontiadou, Sofia; Cordoba, Raul; Correa, Juan-Gonzalo; Cuéllar-García, Carolina; De Paoli, Lorenzo; De Paolis, Maria Rosaria; Del Poeta, Giovanni; Demosthenous, Christos; ... (2021). COVID-19 severity and mortality in patients with CLL: an update of the international ERIC and Campus CLL study. Leukemia, 35(12), pp. 3444-3454. Springer Nature 10.1038/s41375-021-01450-8 Chatzikonstantinou, T, Kapetanakis, A, Scarfò, L, Karakatsoulis, G, Allsup, D, Cabrero, A A, Andres, M, Antic, D, Baile, M, Baliakas, P, Bron, D, Capasso, A, Chatzileontiadou, S, Cordoba, R, Correa, J G, Cuéllar-García, C, De Paoli, L, De Paolis, M R, Del Poeta, G, Demosthenous, C, Dimou, M, Donaldson, D, Doubek, M, Efstathopoulou, M, Eichhorst, B, El-Ashwah, S, Enrico, A, Espinet, B, Farina, L, Ferrari, A, Foglietta, M, Frederiksen, H, Fürstenau, M, García-Marco, J A, García-Serra, R, Gentile, M, Gimeno, E, Glenthøj, A, Gomes da Silva, M, Gutwein, O, Hakobyan, Y K, Herishanu, Y, Hernández-Rivas, J Á, Herold, T, Innocenti, I, Itchaki, G, Jaksic, O, Janssens, A, Kalashnikova, О B, Kalicińska, E, Karlsson, L K, Kater, A P, Kersting, S, Labrador, J, Lad, D, Laurenti, L, Levin, M D, Lista, E, Lopez-Garcia, A, Malerba, L, Marasca, R, Marchetti, M, Marquet, J, Mattsson, M, Mauro, F R, Milosevic, I, Mirás, F, Morawska, M, Motta, M, Munir, T, Murru, R, Niemann, C U, Rodrigues, R N, Olivieri, J, Orsucci, L, Papaioannou, M, Pavlovsky, M A, Piskunova, I, Popov, V M, Quaglia, F M, Quaresmini, G, Qvist, K, Reda, G, Rigolin, G M, Ruchlemer, R, Saghumyan, G, Shrestha, A, Šimkovič, M, Špaček, M, Sportoletti, P, Stanca, O, Stavroyianni, N, Tadmor, T, Te Raa, D, Tonino, S H, Trentin, L, Van Der Spek, E, van Gelder, M, van Kampen, R, Varettoni, M, Visentin, A, Vitale, C, Wasik-Szczepanek, E, Wróbel, T, San Segundo, L Y, Yassin, M, Coscia, M, Rambaldi, A, Montserrat, E, Foà, R, Cuneo, A, Stamatopoulos, K & Ghia, P 2021, ' COVID-19 severity and mortality in patients with CLL : an update of the international ERIC and Campus CLL study ', Leukemia, vol. 35, no. 12, pp. 3444-3454 . https://doi.org/10.1038/s41375-021-01450-8