title: The causes and evaluation of chronic hypercapnea.
mesh_terms: D000368:Aged; D002908:Chronic Disease; D006801:Humans; D006935:Hypercapnia / Q000175:diagnosis* / Q000209:etiology*; D007040:Hypoventilation / Q000150:complications; D008173:Lung Diseases, Obstructive / Q000150:complications; D008875:Middle Aged; D009468:Neuromuscular Diseases / Q000150:complications; D009765:Obesity / Q000150:complications / Q000503:physiopathology; D012129:Respiratory Function Tests; D013577:Syndrome