title: Role call. COOs have seen their responsibilities shift and expand with changes in healthcare and growing demands on the chief executive.
authors: Ashok
authors: A
authors: Selvam
mesh_terms: D016542:Chief Executive Officers, Hospital / Q000592:standards* / Q000639:trends; D006739:Hospital Administration / Q000592:standards* / Q000639:trends; D006801:Humans; D012941:Social Responsibility; D014481:United States