Ключевые слова: 3d, abdomen, abdominal, ache, acid, anatomy, background, biology, cancer, cartoon, cause, design, diagram, digestion, digestive, disease, duodenal, endoscopy, erosion, esophageal, esophagus, exam, gastric, gastric acid, gastritis, gastroenterology, gastrointestinal, health, human, human digestive system, icon, illustration, indigestion, inflammation, internal, isometric, medical, medicine, organ, pain, patient, peptic, pud, pylori, science, stomach, symptom, system, ulcer,