Biology, life sciences Crohn's disease Research & information: general adult stem cells adverse events biomarker biomedical optical imaging cancer risk capsule endoscopy celiac disease clinical diagnosis collagenous colitis colon cancer cystic fibrosis dysbiosis index enteropathy fecal calprotectin functional gastrointestinal disorders gastroenterology gut brain axis gut microbiota hyperspectral imaging inflammatory bowel disease (IBD) intestinal inflammation lung cancer medical diagnostic imaging meta-analysis microbiota microscopic colitis mucosal healing