title: Quality improvement in surgery: the American College of Surgeons National Surgical Quality Improvement Program approach.
authors.affiliation: Division of Research and Optimal Patient Care, American College of Surgeons, 633 North Saint Clair Street, Floor 22NE, Chicago, IL 60611, USA. aingraham@facs.org
authors.forename: Angela M
authors.initials: AM
authors.lastname: Ingraham
authors.forename: Karen E
authors.initials: KE
authors.lastname: Richards
authors.forename: Bruce L
authors.initials: BL
authors.lastname: Hall
authors.forename: Clifford Y
authors.initials: CY
authors.lastname: Ko