Nasal BoneNoseNasal MucosaBone and BonesDown SyndromeNasal CavityCrown-Rump LengthNasal SpraysUltrasonography, PrenatalNuchal Translucency MeasurementNose Deformities, AcquiredPregnancy Trimester, FirstNasal SeptumBone RemodelingPregnancy Trimester, SecondNasal DecongestantsNasal CartilagesRhinoplastyBone DensitySkull FracturesRhinometry, AcousticSmellNasal PolypsNasal ObstructionAdministration, IntranasalNose DiseasesGestational AgePregnancyBone ResorptionOlfactory PerceptionMaternal AgeBone MarrowChorionic Villi SamplingNasal Lavage FluidChromosomes, Human, 16-18Chorionic Gonadotropin, beta Subunit, HumanPregnancy-Associated Plasma Protein-ABone NeoplasmsOdorsBone DevelopmentBone Marrow CellsOlfactory PathwaysBone DiseasesImaging, Three-DimensionalSneezingOlfactory MucosaChromosomes, Human, 13-15Facial BonesOlfaction DisordersRhinitis, Allergic, PerennialNeuronavigationCerebrospinal Fluid RhinorrheaBone RegenerationAirway ResistanceBone MatrixPulmonary VentilationObserver VariationBone Marrow TransplantationPregnancy, High-RiskBone TransplantationOropharynxFetal Diseases