title: On the origin of critical care units: a clarification.
authors.forename: Preben G
authors.initials: PG
authors.lastname: Berthelsen
authors.forename: Ronald V
authors.initials: RV
authors.lastname: Trubuhovich
mesh_terms: D003422:Critical Care; D003718:Denmark; D049673:History, 20th Century; D007362:Intensive Care Units / Q000266:history*