Ключевые слова: adult, afraid, aid, angina, attack, background, breathing, business, businessman, cardiac, cardiogram, cardiology, chest, concept, condition, disease, fear, having, health, heart, heartattack, hospital, illness, indigestion, isolated, male, man, medical, medicine, men, pain, palpitation, people, person, shirt, sick, sickness, stress, sudden, treatment, ulcer, unhealthy, white, worried, young,