Treatment of chronic hypoxaemia.
D000368:Aged; D000531:Altitude; D001991:Bronchitis / Q000150:complications / Q000401:mortality / Q000628:therapy; D002908:Chronic Disease; D006801:Humans; D006976:Hypertension, Pulmonary / Q000209:etiology; D000860:Hypoxia / Q000628:therapy*; D008875:Middle Aged; D010100:Oxygen / Q000097:blood; D010102:Oxygen Inhalation Therapy; D011379:Prognosis; D011660:Pulmonary Heart Disease / Q000209:etiology; D013997:Time Factors
D010100:Oxygen