Chronic Daily Headache
NEJM 354:158-165, Dodick,D.W., 2006
Tension-Type Headache
JAMA 306:450, Pluta, R.M.,et al, 2011
Headache and Pregnancy
The Neurologist 14:108-119, Menon,R. &Bushnell,C.D., 2008
Posttraumatic Headache
Semin Neurol 14:40-45, Packard,R.C., 1994