Bronchiolitis ObliteransCryptogenic Organizing PneumoniaBronchiolitisLung TransplantationArteriosclerosis ObliteransBronchiolitis, ViralThromboangiitis ObliteransSyndromeCollagen Type VFlavoring AgentsGraft RejectionBronchoalveolar Lavage FluidMediastinal EmphysemaLungHeart-Lung TransplantationRespiratory AspirationRespiratory Function TestsPrednisoloneBalanitis Xerotica ObliteransLung DiseasesBiopsyDiacetylRespiratory Syncytial Virus InfectionsTransplantation, HomologousAzithromycinNasal LavageInstillation, DrugRadiation PneumonitisTomography, X-Ray ComputedRadiography, ThoracicBronchiBronchoscopyLeukocyte DisordersBronchial DiseasesPostoperative ComplicationsForced Expiratory VolumeRacepinephrineBronchoalveolar LavagePneumoniaTracheaCostimulatory and Inhibitory T-Cell ReceptorsMustard GasAdenoviridae InfectionsFollow-Up StudiesPrimary Graft DysfunctionRetrospective StudiesRespiratory Syncytial VirusesPulmonary FibrosisLung Diseases, InterstitialGraft vs Host DiseaseTreatment OutcomeOxygen Inhalation TherapyRisk FactorsAcute DiseaseGlucocorticoidsAdrenal Cortex HormonesAnti-Inflammatory AgentsBone Marrow TransplantationImmunosuppressive AgentsBiological MarkersChronic DiseaseHematopoietic Stem Cell TransplantationRespiratory Syncytial Virus, HumanMethylprednisolone