Injections, IntravenousInjectionsInjections, IntramuscularInjections, SubcutaneousInjections, IntraperitonealInjections, IntralesionalTissue DistributionInjections, Intra-ArticularInjections, Intra-ArterialTime FactorsInjections, IntraventricularRabbitsRats, Sprague-DawleyLiverDisease Models, AnimalContrast MediaRats, WistarDose-Response Relationship, DrugInjections, IntradermalInjections, EpiduralMice, Inbred C57BLRats, Inbred StrainsMetabolic Clearance RateInjections, SpinalRadiopharmaceuticalsSpleenIodine RadioisotopesMice, Inbred BALB CIntravitreal InjectionsDogsHalf-LifeBlood PressureInjections, JetKidneyInjections, IntraocularGenetic TherapyLungBrainEndotoxinsGenetic VectorsTechnetiumMicroinjectionsAutoradiographyPyrogensGene Transfer TechniquesMononuclear Phagocyte SystemCapillary PermeabilityFluorocarbonsNeoplasm TransplantationLiposomesAdenoviridaeOrganotechnetium CompoundsFlow Injection AnalysisHeart RateCatsRadioisotopesLipopolysaccharidesMice, NudeAntibodies, MonoclonalMice, Inbred StrainsIndium RadioisotopesTomography, Emission-ComputedTomography, Emission-Computed, Single-PhotonDextransBlood-Brain BarrierDrug CarriersCarbon RadioisotopesKineticsMice, Inbred ICRBody TemperaturePolyethylene GlycolsSubstance Abuse, IntravenousSheepOrganometallic CompoundsSperm Injections, IntracytoplasmicAntibodiesThoracic DuctRecombinant ProteinsAlbuminsAnesthetics, LocalCisterna MagnaRats, Inbred LewRandom AllocationLidocaineMicrospheresLeukocyte CountMacrophagesSyringesImmunoglobulin GAnesthesiaNeoplasms, ExperimentalDrug Delivery SystemsImmunization, PassiveBileImmunohistochemistryAntibody FormationEpinephrineGadolinium DTPAAtropinePositron-Emission Tomography