Ключевые слова: accident, aid, ambulance, arrest, assistance, breath, breathing, cardiac, cardiology, cardiovascular, certification, chest, compression, courage, cpr, death, demonstrating, education, emergency, examining, fatal, first, first aid, health, healthcare, heart, help, helping, hospital, learning, life, massage, medical, medicine, practice, procedure, rescue, respiratory, resuscitation, safe, safety, saving, sick, training, unconscious,