Ключевые слова: accident, aid, alarm, alert, ambulance, assistance, background, blood, book cover, call, care, city, communication, copy space, danger, defibrillator, doctor, emergency, equipment, first, health, heartbeat, help, hospital, human heart, human internal organ, illness, medical, no people, phone, police, public, red, rescue, resuscitation, revival, safe, safety, security, service, sign, sos, street, symbol, technology, telecommunications, telephone, urgency,