Ключевые слова: abdomen, ache, acid, acidity, anatomical, anatomy, background, body, cancer, care, clinic, concept, design, diet, digestion, digestive, discomfort, disease, disorder, duodenum, food, gastric, gastritis, health, healthy, heartburn, human, hurt, illness, indigestion, internal, medical, medicine, orange, organ, pain, problem, problems, reflux, science, sick, sickness, stomach, stomachache, style, surgery, system, treatment, weight, white,