title: An up-dated method for determining Va-Q inequalities and direct shunt using O2, CO2 and N2.
mesh_terms: D000368:Aged; D002245:Carbon Dioxide; D003201:Computers; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008954:Models, Biological; D009584:Nitrogen; D010100:Oxygen; D011652:Pulmonary Circulation; D012119:Respiration; D014692:Ventilation-Perfusion Ratio
chemical_list: D002245:Carbon Dioxide; D009584:Nitrogen; D010100:Oxygen