Does coexistence of fragmented QRS and cardiovascular disease have the ability to predict the mortality in hospitalized, critically ill patients with COVID-19?

by Fahrettin Katkat, Muhsin Kalyoncuoğlu, Serkan Karahan, Hanife Abanus, Fatma Nihan Turhan Çağlar, Dilay Karabulut, Sinan Varol, İrfan Şahin, Kerem Erkalp, Ertuğrul Okuyan
Published 2021