Ключевые слова: abdomen, ache, aching, acid, acidity, adult, age, angina, belly, care, casual, cramps, day, diarrhea, digestive, disease, hand, having, health, healthcare, hurt, hurting, hurts, ill, male, man, mature, medical, nausea, old, older, outside, pain, painful, patient, pectoris, people, person, problem, reflux, senior, sick, sickness, sitting, stomach, stomachache, suffer, suffering, symptom, tummy,