NicotineBinding SitesProtein BindingNicotinic AgonistsMolecular Sequence DataBase SequencePromoter Regions, GeneticTobacco Use DisorderDNA-Binding ProteinsKineticsTranscription FactorsGanglionic StimulantsReceptors, NicotinicMecamylamineCotinineNicotinic AntagonistsChewing GumSubstance Withdrawal SyndromeTobacco Use Cessation ProductsSmoking CessationSmokingAdministration, CutaneousDihydro-beta-ErythroidineTarsalpha7 Nicotinic Acetylcholine ReceptorSelf AdministrationAzocinesDose-Response Relationship, DrugAmino Acid SequenceAconitineRats, Sprague-DawleyConditioning, OperantQuinolizinesTobacco, SmokelessTobacco ProductsTobaccoRewardBicyclo Compounds, HeterocyclicAnabasineProtein Structure, TertiaryCarbon MonoxideReinforcement (Psychology)Behavior, AnimalSelf StimulationCell LineHexamethoniumBungarotoxinsTime FactorsDopamineBenzazepinesBrainBinding, CompetitiveModels, MolecularHexamethonium CompoundsTobacco Smoke PollutionQuinoxalinesVentral Tegmental AreaPyridinesNitrosaminesAnalysis of VarianceSmokeMotor ActivityRecombinant ProteinsNucleus Accumbens