Fig. 1From: Persisting alterations of iron homeostasis in COVID-19 are associated with non-resolving lung pathologies and poor patients’ performance: a prospective observational cohort studySerum markers of iron homeostasis in post-acute COVID-19 according to disease severity. Correlations of a hepcidin-25, b soluble transferrin receptor (sTFR), c C-reactive protein (CRP) and d interleukin-6 (IL6) with serum ferritin are shown. ρ indicates the correlation coefficient as calculated with Spearman-rank testBack to article page