Ключевые слова: a heart, a life, analysis, annotation, attack, beat, black background, blue, cardiogram, cardiology, care, clinic, curve, cyberspace, diagnosis, diagram, disease, element, frequency, graphics, health, healthy, heartbeat, hospital, illustration, line, logo, love, medical, monitor, pressure, pulse, rate, red, sign, strength, technical, test, the medicine, voltage, wave,