title: Competition and quality.
authors.forename: R H
authors.initials: RH
authors.lastname: Brook
authors.forename: J B
authors.initials: JB
authors.lastname: Kosecoff
mesh_terms: D006279:Health Maintenance Organizations / Q000592:standards*; D006801:Humans; D011785:Quality Assurance, Health Care / Q000639:trends*; D014481:United States