Ключевые слова: antacid, background, best, best seller, block, burn, chemical, concept, cure, digestion, disease, doctor, emotional, gastroenterology, gastroesophageal, gerd, gerd word, hand, health, horizontal, illness, letter, medical, new, oesophagus, pain, pathology, photograph, pyloric, pylorus, reflux, sphincter, stethoscope, stomach, text, treatment, wood, wooden, word, worried,