Ключевые слова: abnormally, ache, acute, adult, angina, aortic, arrhythmia, artery, atrial, attack, beat, breathing, cardiac, care, chest, condition, deep, disease, dizziness, emergency, endocarditis, failure, fast, fibrillation, forcefully, hand, health, heart, heartattack, hold, hospital, illness, infective, lung, medical, medicine, myocardial, myocarditis, pain, palpitation, pectoris, pressure, sick, stenosis, syndrome, thrombosis, vein, woman, young,