title: Physical working capacity in severe chronic obstructive lung disease.
mesh_terms: D000136:Acid-Base Equilibrium; D000328:Adult; D000368:Aged; D002245:Carbon Dioxide / Q000097:blood; D004185:Disability Evaluation; D005080:Exercise Test; D005260:Female; D006801:Humans; D007773:Lactates / Q000097:blood; D008173:Lung Diseases, Obstructive / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D010100:Oxygen / Q000097:blood; D011652:Pulmonary Circulation; D012119:Respiration; D012131:Respiratory Insufficiency / Q000503:physiopathology*; D013147:Spirometry; D014692:Ventilation-Perfusion Ratio
chemical_list: D007773:Lactates; D002245:Carbon Dioxide; D010100:Oxygen