title: [Necessary and unnecessary examinations of patients suffering from headache. A retrospective study].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006261:Headache / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies
vernacular_title: Nødvendige og unødvendige undersøgelser af hovedpinepatienter. En retrospektiv vurdering.