title: VHA members ask AHS to prove effectiveness of new contract.
mesh_terms: D003284:Contract Services; D004865:Equipment and Supplies, Hospital / Q000191:economics; D005376:Financial Management; D006755:Hospital Shared Services / Q000191:economics*; D006784:Hospitals, Teaching / Q000191:economics; D011682:Purchasing, Hospital / Q000191:economics*; D012954:Societies, Hospital; D014481:United States