Rats, Inbred F344Rats, Inbred BNAgingRats, Inbred LewSpecies SpecificityRodent DiseasesBody WeightCarcinogensOrgan SizeLiverSiloxanesLiver Neoplasms, ExperimentalIsocyanatesTime FactorsNeoplasms, ExperimentalCyanatesCarcinogenicity TestsDose-Response Relationship, Drug2-AcetylaminofluoreneDimethylnitrosamineSulfur OxidesPyrrolizidine AlkaloidsDiethylnitrosamineRats, Inbred StrainsDipeptidyl Peptidase 4CyclohexenesAflatoxin B1gamma-GlutamyltransferaseAppetite StimulantsToxicity Tests, ChronicAtmosphere Exposure Chambers2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepinePrecancerous ConditionsHyperplasiaEatingEnfluraneDisease Models, AnimalGliosarcomaKidneyMuscle, SkeletalNitrosaminesChronobiology DisordersRats, Inbred WFAspergillus ochraceusEthylene OxideThyroid GlandThiouracilBiotransformationChlordiazepoxideHydrocarbons, FluorinatedBenzidinesCalcium CitrateEugenolLeydig Cell TumorDietDiquatPhysical Conditioning, AnimalNeoplasm TransplantationEthoxyquinBromatesAzoxymethaneRNA, MessengerButylhydroxybutylnitrosamineCocarcinogenesisAnalysis of VarianceHeroinAdenoma, Bile DuctCyclic N-OxidesCaloric RestrictionHydrocarbons, BrominatedRats, TransgenicPhenobarbitalHistocytochemistryBehavior, AnimalEthylene GlycolsAzo CompoundsTissue DistributionGlutathione TransferaseFungicides, IndustrialEthyl EthersBlood Urea NitrogenCholine DeficiencyRoxithromycinMethylnitrosoureaModels, AnimalEthersDrinkingChromatography, High Pressure Liquid1,2-DimethylhydrazineDopamine Uptake InhibitorsReceptors, Dopamine D1ImmunohistochemistryTularemiaCell DivisionMutagensCrosses, GeneticGliomaAdministration, InhalationCorticosteroneNitrous Oxide