title: In-house versus contract management of environmental services: a matter of cost and quality.
authors.forename: A B
authors.initials: AB
authors.lastname: Zafar
authors.forename: S
authors.initials: S
authors.lastname: Wright
mesh_terms: D003284:Contract Services / Q000191:economics*; D004782:Environmental Health / Q000191:economics*; D006764:Hospitals, Community / Q000191:economics; D006784:Hospitals, Teaching / Q000191:economics; D006801:Humans; D011786:Quality Control; D014768:Virginia