Ключевые слова: ambulance, angina, beat, black, caduceus, cardiogram, care, center, cold, color, colorful, disease, emergency, flat, flu, gradient, grippe, health, heartbeat, hospital, human, icon, illness, illustration, indication, infection, influenza, injury, isolated, life, medic, medical, medicine, monitor, pain, pulse, rate, rhythm, road, set, sign, signboard, sore, star, symbol, urgency, wave,