A doctor with beard and glasses examines a patient’s lungs/chest with a stethoscope. The balding man is lying on a hospital bed with his shirt open, he is connected to a respirator and takes deep breaths for the doctor.The doctor and an assistant move to another bed, where an older patient is lying, they check up on him and flip through his file/papers/notebook. The doctor examines his breathing with a stethoscope.Close up of dials/gauges on a an oxygen tank, man lying in hospital bed connected to breathing tubes through his nose. Close up of stethoscope on man’s chest, doctor’s hand on stethoscope, close up of doctor with stethoscope in ears.Narration discusses air pollution and its effect on breathing problems, lung cancer, Pollution, smog, difficulty breathing, doctors, patients, hospital, clinic, medical exam, lung