title: Post-spinal headache. A preliminary report on the effect of inhaled carbon dioxide.
mesh_terms: D000775:Anesthesia, Spinal / Q000009:adverse effects*; D001783:Blood Flow Velocity; D001921:Brain / Q000098:blood supply; D002245:Carbon Dioxide / Q000097:blood / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D006261:Headache / Q000209:etiology / Q000628:therapy*; D006801:Humans; D007427:Intracranial Pressure; D010102:Oxygen Inhalation Therapy; D011187:Posture; D012138:Respiratory Therapy
chemical_list: D002245:Carbon Dioxide