Ключевые слова: air, airway, alveoli, asthma, background, breath, bronchitis, cancer, care, caution, cell, chronic, coad, cold, copd, coughing, cure, death, disease, emergency, emphysema, hand, heal, human, illness, isolated, lungs, medical, medicine, no, notice, obstructive, oxygen, people, person, pollution, prevention, pulmonary, quit, red, respiratory, shortness, sign, smoker, smoking, stop, symbol, tissue, treatment, warning,