Ключевые слова: ache, acid, anatomy, body, burn, care, clinic, digestion, digestive, disease, drawing, esophageal, esophagus, flat, gastric, gastric juice, gerd, graphic, health, healthy, heartburn, illustration, indigestion, irritate, medical, medicine, organ, pain, problem, reflux, sick, stomach, stomachache, symbol, symptom, system,