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. 2019 Apr 2;24:25. doi: 10.1186/s11658-019-0150-4

Fig. 6.

Fig. 6

Quantitative real-time PCR was used to detect the expression of surfactant proteins. a – SP-A mRNA expression in A549 cells. b – SP-B mRNA expression in A549 cells c – SP-C mRNA expression in A549 cells. d – SP-D mRNA expression in A549 cells. *p < 0.05; **p < 0.01; ***p < 0.001 vs. miR-431-5p negative control