title: Two-tracer method for rapid determination of residual volume.
mesh_terms: D000328:Adult; D001128:Argon; D005260:Female; D006801:Humans; D008297:Male; D009584:Nitrogen; D010100:Oxygen; D012119:Respiration; D012129:Respiratory Function Tests
chemical_list: D001128:Argon; D009584:Nitrogen; D010100:Oxygen