title: Measuring the immeasurable.
authors.affiliation: Emergency and Trauma Centre, Alfred Hospital, Prahran, VIC, Australia. oreillygerard@hotmail.com
authors.forename: Gerard M
authors.initials: GM
authors.lastname: O'Reilly
authors.forename: Alfredo
authors.initials: A
authors.lastname: Mori
authors.forename: Peter A
authors.initials: PA
authors.lastname: Cameron
mesh_terms: D004636:Emergency Service, Hospital / Q000458:organization & administration; D006703:Ill-Housed Persons; D006801:Humans; D008297:Male