Ключевые слова: abdomen, ache, acid, anatomy, background, book, business, care, chest, colorful, concept, design, desk, digestion, digestive, disease, education, esophageal, esophagus, gastric, gastritis, gastroesophageal, gerd, handwritten, health, heartburn, human, illness, illustration, indigestion, inflammation, medical, medicine, message, note, notepad, office, pain, paper, problem, reflux, sick, sign, stomach, system, table, text, wood, wooden, workplace,