Pressure to replace free for service with salaries in hospitals.
D005249:Fees and Charges / Q000639:trends*; D007325:Institutional Practice / Q000639:trends; D008505:Medical Staff, Hospital / Q000639:trends*; D008511:Medicine; D012456:Salaries and Fringe Benefits / Q000639:trends*; D013038:Specialization; D014481:United States