Cluster Headache
BMJ 344:e2407, Nesbitt,A.D.,et al, 2012
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
Butorphanol (Stadol) :A Study in Problems of Current Drug Information and Control
Neurol 48:1156-1160, Fisher,M.A.&Glass,S., 1997
Abrupt Outpatient Withdrawal of Medication in Analgesic-Abusing Migraineurs
Lancet 337:1442-1443, Hering,T.&Steiner,T.J., 1991
Cluster Headache, Local Anesthetic Abortive Agents
Arch Neurol 42:496-498, Kittrelle,J.P.,et al, 1985