Migraine Pain Associated with Middle Cerebral Artery Dilatation:Reversal by Sumatriptan
Lancet 338:13-17, Friberg,L.,et al, 1991
Chronic Daily Headache
Neurol 42:32-36, Sheftell,F.D., 1992
Association Between Migraine and Endothelin Type A Receptor (ETA-231 A/G) Gene Polymorphism
Neurol 56 :1273-1277, Tzourio,C.,et al, 2001