Studies in headache; bulbar conjunctival ischemia and muscle contraction headache.
D002319:Cardiovascular System; D003228:Conjunctiva / Q000098:blood supply*; D006261:Headache / Q000502:physiology*; D020773:Headache Disorders; D006801:Humans; D007511:Ischemia; D009119:Muscle Contraction
CONJUNCTIVA/blood supply; HEADACHE/physiology