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Related to Fig 1. (A) Immunofluorescence of alveolospheres. Scale bar = 50 μm. (B) Immunofluorescence of normal human bronchial epithelial cells as positive control for KRT5 staining. No anti-KRT5 as negative control for staining associated with cells. Scale bar = 50 μm. (C) Proportion of organoids expressing pro-SP-C and KRT5.
