invasion gullet plant sphere spheroid sphincter fulminant peptic cirrhosis myogenic colostrum colorectal heterogeneity pancreatic hollow keratin stellate hepatoma hepatocyte ulcerative colonoscopy ulcer infection hepatocellular stomach infiltrating bovine bowel hepatobiliary hepatitis endoscope hepatic colonofiberscope succinate wild colon intestinal atrophic enteric helicobacter enteritis enteroplegia ataxia liver fecal presenting sustained microbiota synchronous gastritis metachronous fibrogenesis ileum ileus colitis gastric telangiectasia fibrosis gene serologic plateletderived sera incontinence adenocarcinoma colic digestive promoter pylori adenoma gastrointestinal antifibrotic gut antibiotic gastroenteric