No abstract available
MeSH terms
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Animals
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Chromatography, Thin Layer
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Fatty Acids / analysis
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Female
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Fetus
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Gestational Age
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Lipids / analysis
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Lung / analysis*
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Phosphatidylcholines / analysis
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Phosphatidylethanolamines / analysis
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Phospholipids / analysis*
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Pregnancy
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Pulmonary Alveoli / analysis*
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Sheep
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Surface Tension
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Surface-Active Agents / analysis
Substances
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Fatty Acids
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Lipids
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Phosphatidylcholines
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Phosphatidylethanolamines
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Phospholipids
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Surface-Active Agents