title: [Chronic headache. Differential diagnosis and therapy].
authors.affiliation: vpfa@aol.com
authors.forename: V
authors.initials: V
authors.lastname: Pfaffenrath
mesh_terms: D000700:Analgesics / Q000009:adverse effects / Q000627:therapeutic use; D002908:Chronic Disease; D003937:Diagnosis, Differential; D006261:Headache / Q000188:drug therapy / Q000209:etiology*; D006801:Humans
chemical_list: D000700:Analgesics
vernacular_title: Chronische Kopfschmerzen. Differenzialdiagnose und Therapie.