Ключевые слова: art, background, beat, card, cardiogram, cardiology, care, celebration, day, decoration, design, diagnosis, diagnostic, doctor, ecg, ekg, electrocardiogram, graph, graphic, health, healthcare, healthy, heart, heartbeat, hearts, holiday, hospital, icon, illustration, life, line, love, medical, medicine, monitor, patient, pulse, red, romance, romantic, shape, symbol, test, valentine, valentines, valentines day,