title: Chronic daily headache in adolescence: a continuing problem.
authors: Kenneth J
authors: KJ
authors: Mack
authors: Andrew D
authors: AD
authors: Hershey
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D020773:Headache Disorders / Q000175:diagnosis* / Q000628:therapy*; D006801:Humans