Fig. 1From: Urinary cadmium concentration is associated with the severity and clinical outcomes of COVID-19: a bicenter observational cohort studyFlowchart of the enrollment of patients with acute SARS-CoV-2 infection. COVID-19, coronavirus disease 2019; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2; ESRD, end-stage renal diseaseBack to article page