Sinus bradycardia is associated with poor outcome in critically ill patients with COVID-19 due to the B.1.1.7 Lineage. - Chalkias A; Pantazopoulos I; Papagiannakis N; Skoulakis A; Laou E; Kolonia K; Ntalarizou N; Tourlakopoulos K; Pagonis A; Kampolis C; De Guadiana Romualdo LG; Ragias D; et al. (Toxicology reports, 2021)