Early Changes in Renal Function as Predictors of In-Hospital Mortality in COVID-19 Patients. - Olariu, Nicu; Kundnani, Nilima Rajpal; Dragan, Simona Ruxanda; Marc, Luciana-Elena; Buciu, Victor; Berceanu Vaduva, Delia Mira; Valcovici, Andreas; Ratiu, Ioana Adela; Bucuras, Petru; Mihaescu, Adelina (Life (2075-1729), 2026)