title: A general approach to the evaluation of ventilation-perfusion ratios in normal and abnormal lungs.
mesh_terms: D002245:Carbon Dioxide / Q000097:blood; D006801:Humans; D008168:Lung / Q000502:physiology*; D008171:Lung Diseases / Q000175:diagnosis*; D008954:Models, Biological; D010100:Oxygen / Q000097:blood; D014692:Ventilation-Perfusion Ratio
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen