Ключевые слова: aid, artificial, breathing, breathng, cardiac, caucasian, chest, class, cpr, demonstration, doctor, dummy, education, emergency, floor, general practitioner, group, health, healthcare, heart massage, instructor, learn, man, mannequin, massage, mature, medical, medical occupation, medicine, mid adult, model, occupation, oxygen mask, paramedic, practice, presentation, procedure, professional, rescue, respiration, student, teach, torso, training, uniform, woman, work,