Fetal Organ MaturityAmniotic FluidHyaline Membrane DiseaseLungSphingomyelinsRespiratory Distress Syndrome, NewbornAmniocentesisPrenatal DiagnosisPhosphatidylcholinesPhosphatidylglycerolsFluorescence PolarizationPulmonary SurfactantsPregnancyTerm BirthGestational AgePregnancy in DiabeticsInfant, NewbornChromatography, Thin LayerInfant, Newborn, DiseasesLung DiseasesPhospholipidsLung NeoplasmsLung InjuryCarcinoma, Non-Small-Cell LungLung TransplantationAcute Lung InjurySexual MaturationAge Determination by SkeletonLung Volume MeasurementsAge Determination by Teeth