Demonstration of the significance of pulmonary surfactants at birth.
D000818:Animals; D000831:Animals, Newborn / Q000502:physiology*; D002245:Carbon Dioxide / Q000097:blood; D002855:Chromatography, Thin Layer; D005260:Female; D005333:Fetus / Q000502:physiology; D006041:Goats; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007231:Infant, Newborn; D008168:Lung / Q000473:pathology / Q000502:physiology*; D008722:Methods; D008854:Microscopy, Electron; D010100:Oxygen / Q000097:blood; D010743:Phospholipids / Q000032:analysis; D011650:Pulmonary Alveoli / Q000502:physiology*; D011663:Pulmonary Surfactants / Q000032:analysis / Q000502:physiology; D012119:Respiration / Q000187:drug effects; D012127:Respiratory Distress Syndrome, Newborn / Q000209:etiology; D013499:Surface Properties; D013500:Surface Tension; D013501:Surface-Active Agents / Q000494:pharmacology / Q000502:physiology*; D013997:Time Factors; D014939:Work of Breathing