Influenza in patients with respiratory failure admitted to intensive care units in Poland and the use of extracorporeal respiratory support: a survey-based multicenter study. - Smiechowicz, Jakub; Barteczko-Grajek, Barbara; Adamik, Barbara; Bojko, Jozef; Gozdzik, Waldemar; Lipinska-Gediga, Malgorzata (BMC Infectious Diseases, 2021)