title: The three world systems of medical care: trends and prospects.
mesh_terms: D000349:Africa; D001208:Asia; D001315:Australia; D003695:Delivery of Health Care / Q000191:economics / Q000458:organization & administration*; D005060:Europe; D005380:Financing, Government; D007348:Insurance, Health / Q000639:trends*; D007843:Latin America; D008483:Medical Assistance / Q000639:trends*; D009313:National Health Programs; D009520:New Zealand; D009656:North America; D013222:State Medicine / Q000639:trends*