Fig. 2From: Safety during interhospital helicopter transfer of ventilated COVID-19 patients. No clinical relevant changes in vital signs including non-invasive cardiac outputNoninvasive cardiac output data during take-off, midflight and landing. Data are expressed as median and interquartile range. L/min liter per minute, mL milliliter. *P < 0.05 measured using Dunnett’s multiple comparison test. Consecutive measurements in each timeframe are compared to the first measurement in that timeframeBack to article page