Pancreatic DiseasesPancreatitisPancreatic Function TestsPancreatic JuiceCarcinomaPancreatic NeoplasmsPancreatitis, ChronicPancreasCarcinoma, Squamous Cellpara-AminobenzoatesCarcinoma, HepatocellularAmylasesPancreatic DuctsBiliary Tract DiseasesPancreatitis, AlcoholicPancreas, Exocrine4-Aminobenzoic AcidPancreatic CystPanniculitisSecretinCA-19-9 AntigenClinical Enzyme TestsIsoamylaseAminobenzoatesPancreatectomyChronic DiseaseExocrine Pancreatic InsufficiencyCholangiopancreatography, Endoscopic RetrogradeCarcinoma, Pancreatic DuctalEndosonographyCarcinoma in SituPancreatic PseudocystTrypsinogenSphincter of OddiCholangiographyDuodenumCarcinoma, PapillaryAmpulla of VaterLipaseAdenocarcinomaUltrasonographyTrypsinTumor Markers, BiologicalAcute DiseaseLiver NeoplasmsCarcinoma, Ductal, BreastCarcinoma, Basal CellBicarbonatesImmunohistochemistryCarcinoma, Transitional CellTomography, X-Ray ComputedCarcinoma, BronchogenicCarcinoma, Intraductal, NoninfiltratingRetrospective StudiesCarcinoma, Adenoid CysticCystic Fibrosis Transmembrane Conductance RegulatorCarcinoma, Small CellCarcinoma, MedullaryMutationCarcinoma, LobularSensitivity and SpecificityCarcinoma, NeuroendocrineNeoplasm InvasivenessNasopharyngeal NeoplasmsCell Line, TumorPrognosisThyroid NeoplasmsCase-Control StudiesBreast NeoplasmsCystic FibrosisNeoplasm StagingGene Expression Regulation, NeoplasticAlcoholismTumor Cells, CulturedLung NeoplasmsCarcinoma, MucoepidermoidCarcinoma, AdenosquamousCarcinoma, EndometrioidHead and Neck NeoplasmsProspective Studies