Ключевые слова: ache, adult, angina, attack, background, breast, cardiac, cardiology, care, caucasian, chest, concept, condition, coronary, disease, emergency, failure, female, hand, health, healthcare, heart, heart attack, heartache, hold, hospital, hurt, illness, injury, lung, male, man, medical, medicine, myocardial, pain, painful, palpitation, patient, people, person, pressure, red, sick, sickness, stress, sudden, suffering, unhealthy, white,