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. 2015 Jan 27;5:8054. doi: 10.1038/srep08054

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(A) Fluorescent images of nucleus and BMP-4 on developed branches from NHBE clot. BMP-4 expression was observed over the cell clot and branches. Scale bars 100 μm. (B) Comparison of fluorescent intensity of BMP-4 expression from homogeneously distributed NHBE and from NHBE cell clot with branches after day 7. The intensity from cell clot is higher than from homogeneously distributed NHBE (p = 0.014). Exposure time 300 ms. (n = 6).