Correction to: Sex differences in a cohort of COVID-19 Italian patients hospitalized during the first and second pandemic waves. - Quaresima, Virginia; Scarpazza, Cristina; Sottini, Alessandra; Fiorini, Chiara; Signorini, Simona; Delmonte, Ottavia Maria; Signorini, Liana; Quiros-Roldan, Eugenia; Imberti, Luisa (Biology of Sex Differences, 2021)