Figure 2 Fibrogenesis of bronchiolitis obliterans (fibro‐inflammatory stage) after bone marrow transplantation. Fibrillar deposits of connective matrix in intraluminal protrusion with (A) anti‐lysil oxidase staining (indirect immunoperoxidase method, (B) anti‐tenascin and (C) anti‐plasmatic fibronectin labelling (indirect immunofluorescence method). Reproduced from Streichenberger et al26 with kind permission of Springer Science and Business Media.