title: A look back, a look forward. Rise of systems, for-profits challenge a changing VHA.
authors.forename: S
authors.initials: S
authors.lastname: Hensley
mesh_terms: D017754:Group Purchasing; D006265:Health Care Coalitions / Q000639:trends*; D006788:Hospitals, Voluntary / Q000639:trends*; D009935:Organizational Affiliation; D009937:Organizational Objectives; D014481:United States