Fig. 10From: Retinoic acid promotes the endogenous repair of lung stem/progenitor cells in combined with simvastatin after acute lung injury: a stereological analysisEffect of retinoic acid (RA) and simvastatin (SS) compound on the numerical density and distribution characteristics of Ki67 in alveolar cells for acute respiratory distress syndrome (ARDS) in rats. ** P < 0.01 vs. the control group; # # P < 0.01 vs. the ARDS groupBack to article page