Neuroimaging in Presumed Primary Headache Disorders
Semin Neurol 17:373-382, Frishberg,B.M., 1997
Hypothalamic Activation in Cluster Headache Attacks
Lancet 352:275-278, 2531998., May,A.,et al, 1998
Headaches in Pregnancy
Semin Neurol 8:187-192, Reik,L., 1988
Headache and Pregnancy
The Neurologist 14:108-119, Menon,R. &Bushnell,C.D., 2008