Ключевые слова: arrythmia, attack, beat, cardiac, cardio, cardiologist, cardiology, cardiovascular, care, clinic, concept, cure, diagnosis, diagnostic, disease, doctor, ecg, ekg, electrocardiogram, emergency, hand, health, healthcare, heart, heartbeat, help, hospital, life, medic, medical, medicine, object, office, practitioner, prevent, prevention, preventive, protect, protective, pulse, rhythm, space, stethoscope, stress, stroke, support, surgery, tachycardia, transplantation, treatment,