title: Superiority of helium-air flow-volume curves to routine spirometry in the preoperative pulmonary evaluation of teenage scoliotics.
mesh_terms: D000293:Adolescent; D000402:Airway Obstruction / Q000175:diagnosis*; D006371:Helium; D006801:Humans; D008176:Lung Volume Measurements / Q000379:methods*; D012600:Scoliosis / Q000601:surgery*; D013147:Spirometry
chemical_list: D006371:Helium