Fig. 6From: Implications of cardiac markers in risk-stratification and management for COVID-19 patientsRisk-Stratification Biomarker for COVID-19 patients. a–b Fold change of cardiac markers relative to the upper reference within one week after admission. c–d The fluctuation of serum levels of cardiac markers within one week after admission. CAD: COVID-19 patients with pre-existing CAD; non-CAD: COVID-19 patients without pre-existing CADBack to article page