The effect of thoracolumbar sympathectomy on headache in essential hypertension.
D000075222:Essential Hypertension; D006261:Headache / Q000209:etiology*; D006973:Hypertension / Q000150:complications*; D013562:Sympathectomy; D013909:Thorax / Q000601:surgery*; D014652:Vascular Diseases
HEADACHE/etiology and pathogenesis; HYPERTENSION/complications; SYMPATHECTOMY; THORAX/surgery