Diagnostic Techniques, Digestive SystemDiagnostic Techniques, Respiratory SystemRespiratory SystemSensitivity and SpecificityDiagnostic Techniques and ProceduresMolecular Diagnostic TechniquesLung ComplianceRespiratory MechanicsRespiratory Physiological PhenomenaAirway ResistanceDiagnostic Techniques, RadioisotopeDiagnostic Techniques, OtologicalDiagnostic Techniques, SurgicalRespiratory System AbnormalitiesPolymerase Chain ReactionDiagnostic Tests, RoutineAzure StainsClinical Laboratory TechniquesDiagnostic Techniques, UrologicalLung Volume MeasurementsDiagnostic Techniques, Obstetrical and GynecologicalReproducibility of ResultsLungFunctional Residual CapacityTidal VolumeRespirationParasitologyRespiration, ArtificialAir SacsPredictive Value of TestsAir PressureOscillometryTomography, X-Ray ComputedCytodiagnosisEvaluation Studies as TopicRespiratory Function TestsDiagnostic Techniques, NeurologicalBacteriological TechniquesPathology, MolecularPositive-Pressure RespirationPulmonary VentilationRadionuclide ImagingMicroscopyUltrasonographyBiopsy, NeedleRespiratory Tract DiseasesReagent Kits, DiagnosticBiopsyDiagnostic Techniques, Endocrine