title: Bridging the chasm: effect of health information exchange on volume of laboratory testing.
authors.forename: Esteban
authors.initials: E
authors.lastname: Hebel
authors.forename: Blackford
authors.initials: B
authors.lastname: Middleton
authors.forename: Maria
authors.initials: M
authors.lastname: Shubina
authors.forename: Alexander
authors.initials: A
authors.lastname: Turchin
mesh_terms: D003955:Diagnostic Tests, Routine / Q000706:statistics & numerical data*; D006801:Humans; D007755:Laboratories, Hospital / Q000706:statistics & numerical data*; D008499:Medical Records; D012189:Retrospective Studies