Ключевые слова: acid, acid reflux, acute, adult, aged, background, breast, breathing, cancer, cancer patient, care, caucasian, chest, chronic, clinic, condition, disease, emergency, esophageal, face, gastro, gerd, health, heartburn, hospital, ill, illness, insurance, man, man gerd, man reflux, middle, oesophageal, one, pain, painful, patient, people, person, portrait, problem, reflux, sad, sick, sickness, sore, stress, suffer, unhappy, white,