title: Headache research: a string of pearls.
authors.forename: Arne
authors.initials: A
authors.lastname: May
authors.forename: David
authors.initials: D
authors.lastname: Dodick
mesh_terms: D035843:Biomedical Research; D002986:Clinical Trials as Topic; D019317:Evidence-Based Medicine; D005858:Germany; D006261:Headache / Q000175:diagnosis* / Q000628:therapy*; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans