Rats, Inbred ACIStomach NeoplasmsMethylnitronitrosoguanidineStomachCarcinomaCarcinoma, Squamous CellCarcinoma, HepatocellularCarcinoma in SituCarcinoma, PapillaryLiver NeoplasmsStomach DiseasesCarcinoma, Ductal, BreastCarcinoma, Basal CellImmunohistochemistryAdenocarcinomaCarcinoma, Transitional CellGastric MucosaCarcinoma, BronchogenicCarcinoma, Intraductal, NoninfiltratingTumor Markers, BiologicalStomach UlcerCarcinoma, Adenoid CysticCarcinoma, Small CellCarcinoma, MedullaryCarcinoma, LobularCarcinoma, NeuroendocrineNeoplasm InvasivenessPrognosisCell Line, TumorBreast NeoplasmsNeoplasm StagingNasopharyngeal NeoplasmsThyroid NeoplasmsGene Expression Regulation, NeoplasticLung NeoplasmsTumor Cells, CulturedEsophageal NeoplasmsCarcinoma, Signet Ring CellCarcinoma, MucoepidermoidCarcinoma, AdenosquamousHead and Neck NeoplasmsCarcinoma, EndometrioidMouth NeoplasmsCarcinoma, EmbryonalColonic NeoplasmsLymphatic MetastasisCarcinoma, Merkel CellCarcinoma, DuctalOvarian NeoplasmsAdrenocortical CarcinomaNeoplasm MetastasisCarcinoma, VerrucousUrinary Bladder NeoplasmsNeoplasm ProteinsRNA, MessengerSkin NeoplasmsNeoplasms, Multiple PrimaryNeoplasm Recurrence, LocalRetrospective Studies