Pancreatic DiseasesPancreatitisPancreatic Function TestsCholangiopancreatography, Endoscopic RetrogradePancreatic JuicePancreatitis, ChronicPancreatic NeoplasmsPancreasBiliary Tract DiseasesPancreatic DuctsAmylasespara-AminobenzoatesPancreatitis, AlcoholicPancreas, ExocrinePancreatic Cyst4-Aminobenzoic AcidCholangiographyPanniculitisSecretinEndosonographyClinical Enzyme TestsCA-19-9 AntigenIsoamylasePancreatic PseudocystAminobenzoatesChronic DiseaseSphincter of OddiExocrine Pancreatic InsufficiencyPancreatectomyTrypsinogenAmpulla of VaterDuodenumCarcinoma, Pancreatic DuctalAcute DiseaseCholedocholithiasisSphincterotomy, EndoscopicLipaseTrypsinUltrasonographyBicarbonatesHyperamylasemiaCommon Bile Duct DiseasesCholangitisCommon Bile DuctCystic Fibrosis Transmembrane Conductance RegulatorSphincter of Oddi DysfunctionTomography, X-Ray ComputedBile Duct DiseasesCholecystectomy, LaparoscopicCystic FibrosisRetrospective StudiesDuodenoscopesAlcoholismAdenocarcinomaJaundice, ObstructiveSensitivity and SpecificityProspective Studies