Medication overuse headache in Spain.
Pascual
J
J
Services of Neurology, University Hospitals of Salamanca, Oviedo, Spain.
Mateos
V
V
Gracia
M
M
Láinez
J M
JM
D017677:Age Distribution; D005260:Female; D051271:Headache Disorders, Secondary / Q000453:epidemiology* / Q000628:therapy; D006801:Humans; D008297:Male; D015995:Prevalence; D017678:Sex Distribution; D013030:Spain / Q000453:epidemiology