Fig. 2From: The potential role of serum angiotensin-converting enzyme in coronavirus disease 2019The comparisons of serum ACE activity among nonsevere group, severe group and normal controls at baseline (a) and recovery phase (b); the dynamic changes of serum ACE activity in patients with COVID-19 (c). Ninety-seven nonsevere cases and 8 severe cases tested serum ACE activity in the recovery phaseBack to article page