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Fig. 4 | Respiratory Research

Fig. 4

From: Tobacco and menthol flavored nicotine-free electronic cigarettes induced inflammation and dysregulated repair in lung fibroblast and epithelium

Fig. 4

Tobacco flavored e-cig exposure decreased the contraction force of HFL-1 formed tissue

(A). HFL-1 cells were used to form microtissue first, then exposed to air, PG/VG, and tobacco flavored e-cig for 10 min, and followed with 2 days culture. (B). The individual pictures of microtissue were taken by microscope for measurement of contraction force. Data presented as mean ± SEM. (n ≥ 10. * P < 0.05 vs. Air)

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Respiratory Research

ISSN: 1465-993X

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