Studies on headache; cranial artery vasoconstriction and muscle contraction headache.
D001158:Arteries; D001921:Brain / Q000098:blood supply*; D006261:Headache / Q000209:etiology*; D020773:Headache Disorders; D006801:Humans; D009119:Muscle Contraction; D009132:Muscles; D012886:Skull; D014661:Vasoconstriction
BRAIN/blood supply; HEADACHE/etiology and pathogenesis; MUSCLES