Ключевые слова: activity, alive, analysis, background, banner, beat, black, blue, bright, cardio, cardiogram, cardiology, chart, collection, color, concept, curve, design, diagnosis, diagnostic, diagram, digital, ecg, ekg, electrocardiogram, element, frequency, graph, graphic, health, healthcare, healthy, heart, heartbeat, life, light, line, medical, medicine, monitor, neon, pulse, rate, rhythm, signal, surveillance, test, trace, wave,