Dose-Response Relationship, DrugDose-Response Relationship, RadiationOxytropisRadiation DosageRadiometryTime FactorsAdministration, OralVitamin ALethal Dose 50Radioactive FalloutDouble-Blind MethodVitamin A DeficiencyPlutoniumNeoplasms, Radiation-InducedDrug Administration ScheduleDose-Response Relationship, ImmunologicNo-Observed-Adverse-Effect LevelRadiotherapy DosageRats, Sprague-DawleyRelative Biological EffectivenessCarcinogensLeukemia, Radiation-InducedRespiratory Tract NeoplasmsTreatment OutcomeLiverAdministration, InhalationBiological AssayFat SubstitutesRats, Inbred F344Injections, IntravenousWhole Blood Coagulation TimeRandom AllocationKineticsNeoplasmsInfusions, IntravenousModels, BiologicalToxicologyDisease Models, AnimalAnalysis of VarianceBenzhydryl CompoundsAlkylating AgentsHistamineDrug InteractionsToxicity TestsLungCarcinogenicity TestsDrug Dosage CalculationsMutagensBody WeightPentagastrinInjections, SubcutaneousBlood PressureMethacholine ChlorideRats, WistarCells, CulturedForced Expiratory VolumeEthanolaminesLinear Energy TransferSwineBiological AvailabilityEnvironmental ExposureAntineoplastic AgentsCell SurvivalRisk AssessmentPharmacologyGamma RaysCell LineAsthmaNeoplasms, ExperimentalAerosolsSwainsonineDrug SynergismCross-Over StudiesPregnancyDrug Therapy, CombinationRabbitsBronchial Provocation TestsSympathomimeticsIodine RadioisotopesTetrachlorodibenzodioxinDose FractionationBronchodilator AgentsRecombinant ProteinsPhenolsAlbuterolCell DivisionKidneyMice, Inbred StrainsNitrosaminesPlacebosRats, Inbred StrainsParasympatholyticsReproducibility of ResultsNew MexicoClinical Trials as TopicRisk FactorsDNAAge FactorsDogsCalcium