title: [Volume theory--volume void?!].
authors.affiliation: Department of Anesthesiology, Philipps-University Marburg, University Hospital Giessen and Marburg GmbH, Marburg, Germany. jgraf@gmx.de
authors.forename: Jürgen
authors.initials: J
authors.lastname: Graf
authors.forename: Uwe
authors.initials: U
authors.lastname: Janssens
mesh_terms: D001317:Austria; D015982:Bias; D002983:Clinical Competence / Q000706:statistics & numerical data*; D019983:Guideline Adherence / Q000706:statistics & numerical data; D006276:Health Facility Size / Q000706:statistics & numerical data*; D017052:Hospital Mortality; D006801:Humans; D007362:Intensive Care Units / Q000706:statistics & numerical data*; D009313:National Health Programs / Q000706:statistics & numerical data; D010043:Outcome and Process Assessment, Health Care / Q000706:statistics & numerical data*; D011446:Prospective Studies; D011785:Quality Assurance, Health Care / Q000706:statistics & numerical data*; D020379:Risk Adjustment / Q000706:statistics & numerical data