title: High-risk surgery--follow the crowd.
authors.forename: J D
authors.initials: JD
authors.lastname: Birkmeyer
mesh_terms: D017558:Elective Surgical Procedures; D017052:Hospital Mortality; D006761:Hospitals / Q000706:statistics & numerical data*; D006801:Humans; D017063:Outcome Assessment, Health Care; D012017:Referral and Consultation