title: Trauma centres in the USA - past and present.
authors.affiliation: R. Adams Cowley Shock Trauma Center, Baltimore, Maryland 21201-1595, USA.
authors.forename: H R
authors.initials: HR
authors.lastname: Champion
mesh_terms: D049673:History, 20th Century; D014193:Trauma Centers / Q000266:history* / Q000458:organization & administration / Q000639:trends; D014481:United States