HMOs (for-profit and not-for-profit) on the move.
D004465:Economic Competition; D005376:Financial Management / Q000639:trends; D005380:Financing, Government / Q000191:economics; D005381:Financing, Organized / Q000191:economics; D006279:Health Maintenance Organizations / Q000191:economics* / Q000458:organization & administration / Q000639:trends; D006278:Medicare / Q000191:economics; D014481:United States