Chronic Daily Headache
Neurol 42:32-36, Sheftell,F.D., 1992
Migraine-Related Stroke in the Context of the International Headache Society Classification of Head Pain
Arch Neurol 47:458-462, Welch,K.M.A.&Levine,S.R., 1990
The Headache Profile of Idiopathic Intracranial Hypertension
Cephalgia 10:331-335, Wall,M., 1990