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(a) Representative images of initial, post-adhesion spreading for 16HBE human lung epithelial cells 3 hours after plating cells on COL6, COL1 or Matrigel. Arrows show examples of spread cells. (b-d) Quantitation of the percentage of cells spread 3 hours after plating on different matrices for 16HBE (b), NHBE (c), or PHLE (d) cells. N = 6.* p<0.05, ** p<0.01, *** p<0.001.
