Ключевые слова: acid, analyzes, anatomy, background, biology, body, bubble, care, cartoon, chronic, clinic, design, diagnosis, digestion, digestive, distention, doctor, donor, drawing, flat, gas, gaster, graphic, health, healthy, hospital, human, icon, illustration, internal, isolated, lab, laboratory, medic, medical, medicine, organ, pain, part, problem, science, stomach, style, symbol, symptom, system, test, web,