Fig. 3From: The safety and efficacy of mesenchymal stromal cells in ARDS: a meta-analysis of randomized controlled trialsThe meta-analyses of mortality, comparing MSC with the control: A the comparison of MSC with control in general ARDS; B the comparison of MSC with control in COVID-19-induced ARDS. The size of each square represents the proportion of information given by each trial. Crossing with the vertical line suggests no difference between the two groupsBack to article page