Ключевые слова: accident, ache, adult, aid, alone, ambulance, arrest, assistance, attack, background, cardiac, cardiology, cardiopathy, cardiopulmonary, care, chest, compression, coronary, emergency, first, forest, health, heart, human, illness, life, male, man, manual, medical, medicine, outdoor, pensioner, people, person, problem, rescue, resuscitation, senior, sick, stand, stress, stroke, summer, tree, unconscious, vascular, walk,