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Caption : supplementary figure 1. representative images of fresh and decellularized lung tissue sections stained with masson’s trichrome (a-d) and alcian blue (f-i). quantification of positive collagen and glycosaminoglycan staining area is shown in e and j, respectively. scale bar = 200 µm. **: p<0.01

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Caption : supplementary figure 2. representative images of high magnification (40x) images of collagen i and collagen iv immunofluorescence. scale bar = 20 µm.