Diagnostic Techniques, Digestive SystemDiagnostic Techniques, Respiratory SystemVirus ReplicationRespiratory SystemDiagnostic Techniques and ProceduresSensitivity and SpecificityLung ComplianceMolecular Diagnostic TechniquesRespiratory MechanicsRespiratory Physiological PhenomenaAirway ResistanceDiagnostic Techniques, RadioisotopeDiagnostic Techniques, OtologicalDiagnostic Techniques, SurgicalRespiratory System AbnormalitiesAzure StainsDiagnostic Techniques, UrologicalLung Volume MeasurementsPolymerase Chain ReactionDiagnostic Techniques, Obstetrical and GynecologicalDiagnostic Tests, RoutineFunctional Residual CapacityLungTidal VolumeClinical Laboratory TechniquesRespirationReproducibility of ResultsRespiration, ArtificialAir SacsAir PressureOscillometryCytodiagnosisRespiratory Function TestsDiagnostic Techniques, NeurologicalTomography, X-Ray ComputedPositive-Pressure RespirationParasitologyPredictive Value of TestsPulmonary VentilationRadionuclide ImagingBiopsy, NeedleRespiratory Tract DiseasesDiagnostic Techniques, EndocrineUltrasonography