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The composition and function of lung surfactant. The constitution of phospholipids% might be slightly different in different publications, and the discrepancy might be due to differences in the source (animal species) and the method of extraction (either from lavage or from whole minced tissue). Plasmalogen, a minor yet bioactive ether phospholipid of lung surfactant, is the ethanolamine and choline phospholipids vs. its ester counterpart.
