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Fig.
5. Immunohistochemistry
for MMP-1 in IPF and control lungs.IntenseMMP-1 staining was observed in
epithelial cells (A and B),alveolar macrophages (A and
Inset in B),and some interstitial inflammatory cells close to fibroblast
foci (B).Control lungs showed occasional MMP-1-positive alveolar
macrophage (C).Negative control omitting the primary antibody
(D).(Original magnification: X40 in A- D.X100 in B
Inset ).

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