title: The Rand experiment and economical health care.
mesh_terms: D006125:Group Practice, Prepaid / Q000706:statistics & numerical data; D006269:Health Facilities, Proprietary / Q000191:economics; D006279:Health Maintenance Organizations / Q000191:economics* / Q000706:statistics & numerical data; D007348:Insurance, Health; D011897:Random Allocation; D014861:Washington