title: Chronic migraine: medication overuse headache.
authors: John F
authors: JF
authors: Rothrock
mesh_terms: D000700:Analgesics / Q000009:adverse effects* / Q000627:therapeutic use*; D051271:Headache Disorders, Secondary / Q000209:etiology*; D006801:Humans; D008881:Migraine Disorders / Q000188:drug therapy*
chemical_list: D000700:Analgesics