COVID-19(19) Patient(12) Haemodialysis(10) dialysis(8) vaccination(7) variant(7) Cohort(7) patients(7) retrospective(6) COVID-19 patient(6) conducted(6) Infection(5) kidney transplant(5) Acute kidney injury(5) Mortality(5) Analysis(5) SARS-CoV-2(4) cough(4) Fever(4) AKI(4) COVID-19 infection(4) identify(4) Kidney disease(4) omicron(4) response(4) General population(4) predictor(4) required(4) Mucormycosis(3) evaluated(3)