Pulmonary SurfactantsPulmonary Surfactant-Associated ProteinsPulmonary Surfactant-Associated Protein AProteolipidsSurface TensionPulmonary Surfactant-Associated Protein BPulmonary Surfactant-Associated Protein CPulmonary Alveoli1,2-DipalmitoylphosphatidylcholinePulmonary Surfactant-Associated Protein DPhosphatidylglycerolsSurface-Active AgentsMacrophages, AlveolarPhospholipidsLungAirAdsorptionSurface PropertiesRespiratory Distress Syndrome, NewbornBronchoalveolar Lavage FluidBiological ProductsPhosphatidylcholinesPulmonary Alveolar ProteinosisPneumocytesApoproteinsMembranes, ArtificialAlveolar ProcessVernix CaseosaLung CompliancePressureLung DiseasesRespiratory Distress Syndrome, AdultSwineCattleBronchoalveolar LavageMeconium4-Chloro-7-nitrobenzofurazanCollectinsWaterRespiratory MucosaLipid BilayersGlycoproteinsLauratesLipidsFetal Organ MaturityHyaline Membrane DiseaseFetusRabbitsAlveolar Bone LossMicroscopy, Atomic ForceRats, Sprague-DawleyRespiratory AspirationRhabdomyosarcoma, AlveolarQuartzCells, CulturedSilicon DioxideBiophysical PhenomenaPhase TransitionPulmonary Gas Exchange2-NaphthylamineTemperatureBiophysicsAmniotic FluidNanotubes, CarbonInfant, NewbornLiposomesSheepCetrimonium CompoundsMolecular Sequence DataPhagocytosisMicroscopy, ElectronTime FactorsRNA, MessengerCalorimetry, Differential ScanningEpithelial CellsMicroscopy, FluorescencePalmitic AcidPorphobilinogenAmino Acid SequenceMicellesAnimals, NewbornMannheimia haemolyticaDexamethasoneSus scrofaPneumoniaChemistry, PhysicalAmnionCholesterolKineticsHydrophobic and Hydrophilic InteractionsGestational AgeMembrane FluidityPeptidesFatty AlcoholsRespiratory InsufficiencyLipopolysaccharidesMannose-Binding LectinsCholinePolysorbates