Sphincterotomy, EndoscopicDescemet Stripping Endothelial KeratoplastyCholangiopancreatography, Endoscopic RetrogradeHyperamylasemiaBiliary Tract DiseasesReagent StripsCatheterizationPancreatitisTreatment OutcomeMuscle ContractionMuscle, SmoothMuscle RelaxationUrinary BladderGuinea PigsUterine ContractionTracheaGastric FundusImmunochromatographyAcetylcholineElectric StimulationAtropineMiddle EastMuscle, Smooth, VascularNorepinephrineHistamineRabbitsCarbacholIsometric ContractionPenisCalciumIleumMyometriumPaperTrimethylsilyl CompoundsGold ColloidPotassium ChlorideAutacoidsDogsIndicators and ReagentsDose-Response Relationship, DrugAorta, ThoracicStomachTetrodotoxinFood TechnologyNitroarginineMethylene BlueSensitivity and SpecificityPotassiumPhentolamineEscinGastrointestinal MotilityNifedipineSerotoninSwineVasoconstrictionPhenylephrineIsoproterenolBlood Glucose Self-MonitoringColonIndomethacinNitric OxideImmunoassayMyosin Light ChainsMesenteric ArteriesMeat-Packing IndustryMeatMethysergideSRS-AMohs SurgeryReagent Kits, Diagnostic