title: Operator volume as a "risk factor".
authors.forename: S E
authors.initials: SE
authors.lastname: Kimmel
authors.forename: D M
authors.initials: DM
authors.lastname: Kolansky
mesh_terms: D015906:Angioplasty, Balloon, Coronary / Q000009:adverse effects* / Q000592:standards / Q000706:statistics & numerical data*; D002983:Clinical Competence / Q000706:statistics & numerical data*; D006801:Humans; D017063:Outcome Assessment, Health Care; D010818:Practice Patterns, Physicians' / Q000592:standards*; D012307:Risk Factors