CoughWhooping CoughAntitussive AgentsDelayed DiagnosisEarly DiagnosisPrenatal DiagnosisSensitivity and SpecificityDiagnosisRetrospective StudiesCapsaicinCitric AcidTomography, X-Ray ComputedDiagnostic ErrorsCodeineRespiratory SoundsChronic DiseaseProspective StudiesBiopsyReflexTreatment OutcomeTime FactorsPredictive Value of TestsReproducibility of ResultsDiagnosis, Computer-AssistedExpectorantsNursing DiagnosisAsthmaSputumBronchitisFollow-Up StudiesRisk FactorsInfant, NewbornPrognosisFatal OutcomeBronchoscopyBordetella pertussisPreimplantation DiagnosisRespiratory Tract InfectionsPrevalenceMagnetic Resonance ImagingRadiography, ThoracicAcute DiseasePolymerase Chain ReactionRespiratory Tract DiseasesPregnancyIncidenceCohort StudiesNasal DecongestantsSeverity of Illness IndexCommon ColdBronchial Provocation TestsBiopsy, NeedleGastroesophageal RefluxRespiration DisordersRespiratory Function TestsAge FactorsAdministration, InhalationForced Expiratory VolumeGuaifenesinQuestionnairesLarynxFetal DiseasesCase-Control StudiesTuberculosis, PulmonaryVital CapacityPhysical ExaminationCross-Sectional Studies