title: Breathing during sleep in chronic obstructive pulmonary disease. State of the art.
mesh_terms: D006801:Humans; D008173:Lung Diseases, Obstructive / Q000097:blood / Q000503:physiopathology*; D010100:Oxygen / Q000097:blood; D012119:Respiration; D012890:Sleep / Q000502:physiology*; D012895:Sleep, REM / Q000502:physiology
chemical_list: D010100:Oxygen