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Fluorescence micrographs of alveolar epithelial cell distribution across filters. The adherent monolayers were fixed with 70% ethanol and were subjected to propidium iodide assay. Panel A shows the uniform distribution of control cells. Panel B shows the cells in the filters that received 5% meconium and cell detachment compared to the control cells. Panel C shows the distribution of cells that received meconium in the presence of protease inhibitors.
