Headache of extracranial origin.
D001158:Arteries; D002574:Cervical Vertebrae; D006257:Head; D006261:Headache / Q000209:etiology*; D006801:Humans; D008881:Migraine Disorders; D009333:Neck; D013118:Spinal Cord Diseases; D014276:Trigeminal Nerve; D014652:Vascular Diseases; D014711:Vertebral Artery
HEADACHE/etiology and pathogenesis; SPINAL CORD/diseases