title: Outcome versus volume in coronary-bypass operations.
authors.forename: V
authors.initials: V
authors.lastname: Parsonnet
authors.forename: A D
authors.initials: AD
authors.lastname: Bernstein
mesh_terms: D002983:Clinical Competence; D001026:Coronary Artery Bypass / Q000401:mortality / Q000706:statistics & numerical data*; D013502:General Surgery / Q000193:education; D006801:Humans; D009515:New Jersey / Q000453:epidemiology; D010414:Pennsylvania / Q000453:epidemiology; D018570:Risk Assessment; D016896:Treatment Outcome