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Ceramide and dihydroceramide levels in BAL fluid during the first 21 days after elastase injection. Results represent a total of n=4 mice per group for days 1, 3 and 4, n=8 mice per group for days 8, 14, 21 and n=12 mice per group for days 0, 2 and 5. * = p<0.05.
