title: The conduct and usefulness of evaluation research in health-care delivery.
authors.forename: W C
authors.initials: WC
authors.lastname: Richardson
authors.forename: S M
authors.initials: SM
authors.lastname: Shortell
authors.forename: W H
authors.initials: WH
authors.lastname: Campbell
mesh_terms: D003695:Delivery of Health Care / Q000458:organization & administration*; D005069:Evaluation Studies as Topic; D010593:Pharmaceutical Services; D011640:Public Policy; D012107:Research Design; D014481:United States