COVID-19(98) Patient(71) patients(42) Abstract(40) SARS-CoV-2(39) Hemodialysis(34) Result(31) Acute kidney injury(31) dialysis(29) kidney(28) Infection(28) Mortality(25) renal(24) pandemic(24) required(24) with COVID-19(23) patients with COVID-19(23) risk(23) significantly higher(21) supplementary material(20) AKI(20) BNT162b2(19) disease(19) antibody(18) median(18) Kidney injury(17) observational study(17) outcome(17) 95% CI(17) dose(17)