Medication overuse headache--comments on the current International Headache Society classification criteria.
Haag
Gunther
G
D000700:Analgesics / Q000009:adverse effects; D051271:Headache Disorders, Secondary / Q000139:chemically induced* / Q000145:classification; D006801:Humans; D017410:Practice Guidelines as Topic / Q000592:standards; D012955:Societies, Medical / Q000592:standards
D000700:Analgesics