Fig. 1From: Impaired skin microvascular endothelial reactivity in critically ill COVID-19 patientsA Skin microvascular endothelial flow at baseline and reactivity defined by area under the curve in non-COVID-19 bacterial pneumonia (NCBP) and COVID-19 patients. B Skin microvascular blood flow in response to three stimulation of acetylcholine (arrows) in NCBP patients (grey) and COVID-19 patients (red), represented as mean + / SEM every second for 10 min after the first acetylcholine challengeBack to article page