Lung Volume MeasurementsAuscultationHeart AuscultationPlethysmography, Whole BodyLungStethoscopesHeart MurmursHeart SoundsBlood Volume DeterminationImaging, Three-DimensionalReproducibility of ResultsObserver VariationFunctional Residual CapacityBlood VolumeTotal Lung CapacityElectronics, MedicalMultimediaPhonocardiographyRespiratory SoundsLung DiseasesPulmonary EmphysemaRespiratory MechanicsCD-ROMInsufflationLung ComplianceResidual VolumeSensitivity and SpecificityImage Processing, Computer-AssistedPneumonectomyUltrasonography, PrenatalVital CapacityMagnetic Resonance ImagingOrgan SizeTomography, X-Ray ComputedErythrocyte VolumeForced Expiratory VolumeEnophthalmosRespiratory Function TestsPlasma VolumeCardiac VolumeProspective StudiesGastric DilatationCardiologyOrbital FracturesAirway ObstructionLung NeoplasmsSerum Albumin, Radio-IodinatedTidal VolumeImage Interpretation, Computer-AssistedHeliumComputer-Assisted InstructionUltrasonographyLung InjuryReference ValuesCardiotocographyRadiographic Image Interpretation, Computer-AssistedClinical CompetenceGestational AgeStroke VolumeAirway ResistanceRadiography, ThoracicRespirationDiaphragmPulmonary Diffusing CapacityInhalationEmphysemaExpiratory Reserve VolumePulmonary Gas ExchangeFetal Monitoring