title: A woman with sudden headache followed by collapse.
authors.affiliation: Basildon and Thurrock NHS Trust, Basildon, Essex SS16 5NL. danieljones@doctors.org.uk
authors.forename: Daniel A
authors.initials: DA
authors.lastname: Jones
authors.forename: Fiona
authors.initials: F
authors.lastname: Walker
authors.forename: Neha R
authors.initials: NR
authors.lastname: Chopra
authors.forename: Walter
authors.initials: W
authors.lastname: Serino
authors.forename: Farhad
authors.initials: F
authors.lastname: Huwez