Ключевые слова: ache, adult, angina, attack, background, brazilian, cardiac, cardiology, care, casual, caucasian, chest, concept, condition, coronary, disease, emergency, expression, hand, having, health, health care, heart, human, hurt, illness, isolated, male, man, medical, medicine, pain, painful, palpitation, people, person, problem, red, sick, sickness, stress, stroke, sudden, suffering, treatment, unhealthy, unwell, white, worried, young,