title: Practice variations, appropriateness and decision analysis.
authors.forename: J R
authors.initials: JR
authors.lastname: Hampton
mesh_terms: D001026:Coronary Artery Bypass / Q000706:statistics & numerical data*; D003661:Decision Support Techniques; D015276:Health Care Rationing; D006801:Humans; D018579:Patient Selection; D010818:Practice Patterns, Physicians'; D006113:United Kingdom; D014481:United States