Evers S, Suhr B, Bauer B, et al: A retrospective long-term analysis of the epidemiology and features of drug-induced headache. J Neurol 246 : 802-809,1999
Young WB: Drug-induced headache. Neurol Clin N Am 22 ; 173-184,2004
Headache Classification Committee of the International Headache Society. Classification and diagnostic criteria for headache disorders, cranial neuralgias and facial pain. Headache 8 (Suppl 7) ; 1-96,1988
Silberstein SD, Lipton RB, Solomon S, et al: Classification of daily and near daily headaches : Proposed revisions to the IHS classification. Headache 34 ; 1-7,1994
Katsarava Z, Fritsche G, Muessig M, et al : Clinical features of withdrawal headache following overuse of triptans and other headache drugs. Neurology 57 ; 1694-1698,2001