“…Participating institutions (n = 152) from 41 countries ( Supplementary Fig. S1 ) documented COVID-19 episodes diagnosed between January 1, 2020, and December 31, 2022 in patients with hematological malignancies in the EPICOVIDEHA registry, accessible at www.clinicalsurveys.net (EFS Fall 2022, TIVIAN, Cologne, Germany), including both already described 2 , 7 , 8 , 10 , 11 , 13 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 and undescribed patients. EPICOVIDEHA (National Clinical Trials Identifier, NCT04733729) is an international open web-based registry dedicated to adult hematological malignancy patients infected with SARS-CoV-2, set by part of the European Hematology Association Specialized Working Group (EHA-SWG) Infections in Hematology.…”