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. 2016 Nov 10;6:36599. doi: 10.1038/srep36599

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Copyright © 2016, The Author(s)

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Comparison of the serum S1P and urine sphingosine levels (a) between the AERD and ATA groups, data are presented as means ± SD. Correlation of the basal status of serum S1P and urine sphingosine levels with (b) the decline of FEV₁ (%) following the ASA-BPT, and (c) serum periostin level.