%0 Journal Article %A Özdemir, İbrahim Halil %A Özlek, Bülent %A Özen, Mehmet Burak %A Gündüz, Ramazan %A Çetin, Nurullah %A Özlek, Eda %A Yıldız, Bekir Sedat %A Tıkız, Hakan %T Fragmented QRS is a marker of mortality in patients with severe COVID-19: A retrospective observational study %D 2021 %J Anatol J Cardiol %P 811-820 %V 25 %N 11 %R 10.5152/AnatolJCardiol.2021.62 %U https://dx.doi.org/10.5152/AnatolJCardiol.2021.62