StomachStomach NeoplasmsStomach DiseasesPancreatic NeoplasmsNeoplasmsGastric MucosaStomach UlcerNeoplasms, Cystic, Mucinous, and SerousNeoplasms, Multiple PrimarySkin NeoplasmsNeoplasms, Second PrimaryGastrointestinal NeoplasmsKidney NeoplasmsAdenocarcinoma, MucinousThyroid NeoplasmsImmunohistochemistryLung NeoplasmsMyeloproliferative DisordersDNA, NeoplasmPyloric AntrumLiver NeoplasmsCystadenomaParotid NeoplasmsNeoplasms, Connective and Soft TissueNeoplasms, Plasma CellAppendiceal NeoplasmsOvarian NeoplasmsEndocrine Gland NeoplasmsNeoplasms, ExperimentalStomach RuptureCystadenoma, MucinousIntestinal NeoplasmsAdenocarcinomaNeoplasms, Radiation-InducedGastric FundusCarcinoma, Pancreatic DuctalNose NeoplasmsAdenocarcinoma, PapillaryNeoplasms, Vascular TissueEye NeoplasmsNeoplasm StagingGastrectomyAdenomaNeoplasm ProteinsSalivary Gland NeoplasmsTesticular NeoplasmsLymphomaStomach VolvulusCarcinoma, PapillaryUterine NeoplasmsNeoplasms, Muscle TissueNeoplasms, Glandular and EpithelialSoft Tissue NeoplasmsCystadenocarcinoma, MucinousColonic NeoplasmsHematologic NeoplasmsGastroscopyAntigens, NeoplasmDuodenal NeoplasmsNeoplasms, Adnexal and Skin AppendageDigestive SystemNeoplasm InvasivenessVascular NeoplasmsBone NeoplasmsTumor Markers, BiologicalSweat Gland NeoplasmsGastric JuicePalatal NeoplasmsBile Duct NeoplasmsNeoplasms, Complex and MixedHelicobacter pyloriSplenic NeoplasmsDog DiseasesDuodenumMandibular NeoplasmsCystadenocarcinomaGastrointestinal MotilityGastric AcidThymus NeoplasmsColorectal NeoplasmsHeart NeoplasmsCystadenoma, SerousMaxillary NeoplasmsDigestive System NeoplasmsGastrinsAnal Gland NeoplasmsNeoplasms, Germ Cell and EmbryonalBone Marrow NeoplasmsHelicobacter InfectionsGastritisNeoplasms, Adipose TissueIleal NeoplasmsCarcinomaTomography, X-Ray ComputedMeningeal NeoplasmsFatal OutcomeStomach, RuminantMouth NeoplasmsEsophageal NeoplasmsRetrospective Studies