title: Medication overuse headache.
authors: Gunther
authors: G
authors: Haag
mesh_terms: D000700:Analgesics / Q000009:adverse effects* / Q000627:therapeutic use; D051271:Headache Disorders, Secondary / Q000139:chemically induced* / Q000188:drug therapy / Q000453:epidemiology; D006801:Humans
chemical_list: D000700:Analgesics