title: An unsuspected cause of hypnic-like headache.
authors.affiliation: Department of Neurosciences (Neurology), Hospital de Santa Maria, Lisbon, Portugal.|Faculty of Medicine, University of Lisbon, Lisbon, Portugal.
authors.forename: Mariana
authors.initials: M
authors.lastname: Fonseca
authors.affiliation: Department of Neuroradiology, Hospital de Santa Maria, Lisbon, Portugal.|Faculty of Medicine, University of Lisbon, Lisbon, Portugal.
authors.forename: Pedro
authors.initials: P
authors.lastname: Teotónio
authors.affiliation: Department of Neurosciences (Neurology), Hospital de Santa Maria, Lisbon, Portugal. acfonseca@medicina.ulisboa.pt.|Department of Neuroradiology, Hospital de Santa Maria, Lisbon, Portugal. acfonseca@medicina.ulisboa.pt.|Faculty of Medicine, University of Lisbon, Lisbon, Portugal. acfonseca@medicina.ulisboa.pt.|Serviço de Neurologia, Hospital de Santa Maria, Avenida Professor Egas Moniz, 1649-035, Lisbon, Portugal. acfonseca@medicina.ulisboa.pt.
authors.forename: Ana Catarina
authors.initials: AC
authors.lastname: Fonseca
mesh_terms: D001921:Brain / Q000000981:diagnostic imaging; D002343:Carotid Artery, Internal / Q000000981:diagnostic imaging*; D002561:Cerebrovascular Disorders / Q000150:complications* / Q000000981:diagnostic imaging* / Q000188:drug therapy; D003937:Diagnosis, Differential; D051270:Headache Disorders, Primary / Q000000981:diagnostic imaging* / Q000188:drug therapy / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged