Environmental air pollution, emphysema and ionized air.
D000388:Air; D000390:Air Ionization; D000397:Air Pollution; D002140:California; D002248:Carbon Monoxide / Q000378:metabolism; D006801:Humans; D007477:Ions; D011656:Pulmonary Emphysema / Q000150:complications*; D012129:Respiratory Function Tests; D012907:Smoking
D007477:Ions; D002248:Carbon Monoxide