3Classification of Headache-Ad Hoe Committee on Classification of Headache. The Journal of The American Medical Association . 1962
4Lance JW,et al.Brainstem influence on the cephalic circulation: experimental date from cat and monkey of relevance to the mechanism of migraine. Headache . 1983
5Sicuteri F Endorphins.opiate receptors and migraine headache. Headache . 1978
6Rosenblum WI,et al.In vivo evidence that an adenylate cyclase-cAMP system dilates cerebral arterioles in mice. Stroke . 1988
7Fettes I,et al.Endorphin levels in headache syndromes. Headache . 1985
8Ho IK,et al.Effect of cyclic AMP on morphine analgesia tolerance and physical dependence. Nature . 1972
