Daily Scheduled Opioids for Intractable Head Pain
Neurol 62:1687-1694,1662, Saper,J.R.,et al, 2004
Intravenous Dihydroergotamine for Inpatient Management of Refractory Primary Headaches
Neurol 77:1827-1832, Nagy, A.J.,et al, 2011
The Emergency Management of Headaches
The Neurologist 9:93-98, Green,M.W., 2003
Treatment of Medically Intractable Cluster Headache by Occipital Nerve Stimulation: Long-Term Follow-Up of Eight Patients
Lancet 369:1099-1065, Burns,B.,et al, 2007
Why Headache Treatment Fails
Neurol 60:1064-1070, Lipton,R.B.,et al, 2003
Symptomatic and Prophylactic Treatment of Migraine and Tension-Type Headache
Neurol 42:16-21, Schulman,E.A.&Silberstein,S.D., 1992