title: Heterogeneous population.
authors.affiliation: London, UK ahmed.al-hindawi@nhs.net.
authors.forename: A
authors.initials: A
authors.lastname: Al-Hindawi
authors.affiliation: London, UK.
authors.forename: D
authors.initials: D
authors.lastname: Whittaker
authors.affiliation: London, UK.
authors.forename: T
authors.initials: T
authors.lastname: Spruell
authors.affiliation: London, UK.
authors.forename: J
authors.initials: J
authors.lastname: McLean
authors.affiliation: London, UK.
authors.forename: M
authors.initials: M
authors.lastname: Vizcaychipi
mesh_terms: D001794:Blood Pressure; D003693:Delirium; D006801:Humans; D007022:Hypotension; D008954:Models, Biological; D014652:Vascular Diseases