Ключевые слова: background, black, blue, cardiovascular, closeup, color, copy, diagnostic, disease, equipment, exam, focus, foreground, health, healthcare, heart, heartbeat, horizontal, human, image, isolated, light, macro, medical, medicine, metal, metaphors, no, objects, on, people, perspective, printout, pulse, research, science, services, silver, single, stethoscope, supplies, symbols, taking, technology, test, to, tone, tool, trace, white, work,