Ключевые слова: aid, alert, alertness, arrhythmias, assistance, beating, cardiogram, care, checkup, clinic, clinical, danger, death, disease, document, documentation, ecg, ekg, emergency, graph, graphic, health, healthcare, heart, heartbeat, hospital, medical, medicare, medicine, monitoring, paper, pulsating, pulse, record, service, stopping, technology, trace, urgent, ward, warning, wave,