title: Acute, subacute, and chronic headache.
abstract: Headaches are perhaps the most common ailment, affecting up to 80% of the population. They can be classified as acute, subacute, or chronic, depending on the time they have been present, either intermittently or continuously. This article describes the most common types of headaches, their causes, and various treatments available.
authors.affiliation: Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA.
authors.forename: Egilius L
authors.initials: EL
authors.lastname: Spierings
mesh_terms: D000208:Acute Disease; D002908:Chronic Disease; D003937:Diagnosis, Differential; D005260:Female; D006261:Headache / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology*; D006801:Humans; D008297:Male