Cystadenocarcinoma, SerousAdenocarcinomaOvarian NeoplasmsCarcinoma, EndometrioidAdenocarcinoma, Clear CellAdenocarcinoma, MucinousLung NeoplasmsPancreatic NeoplasmsEsophageal NeoplasmsAdenocarcinoma, PapillaryBarrett EsophagusCarcinoma, Pancreatic DuctalAdenocarcinoma, Bronchiolo-AlveolarStomach NeoplasmsCardiaImmunohistochemistryColonic NeoplasmsTumor Markers, BiologicalEsophagogastric JunctionNeoplasm StagingPrognosisKeratin-7Gene Expression Regulation, NeoplasticCell Line, TumorCarcinoma, Squamous CellEndometrial NeoplasmsNeoplasms, Multiple PrimaryPrecancerous ConditionsIntestinal NeoplasmsProstatic NeoplasmsTumor Cells, CulturedDuodenal NeoplasmsCarcinoma, Signet Ring CellCecal NeoplasmsMammary Neoplasms, ExperimentalNeoplasm InvasivenessMetaplasiaImmunoenzyme TechniquesColorectal NeoplasmsRectal NeoplasmsAmpulla of VaterGenes, rasCommon Bile Duct Neoplasms