title: Subarachnoid haemorrhage. Beware adopting rigid rules.
authors.forename: Hani
authors.initials: H
authors.lastname: Marcus
authors.forename: David
authors.initials: D
authors.lastname: Sayer
authors.forename: Tim
authors.initials: T
authors.lastname: Harris
mesh_terms: D000208:Acute Disease; D020773:Headache Disorders / Q000209:etiology*; D006801:Humans; D013345:Subarachnoid Hemorrhage / Q000175:diagnosis*