Medical care utilization in an experimental prepaid group practice.
D000293:Adolescent; D000553:Ambulatory Care; D006123:Group Practice; D006760:Hospitalization; D006761:Hospitals / Q000706:statistics & numerical data; D006801:Humans; D007350:Insurance, Hospitalization; D007357:Insurance, Physician Services; D007359:Insurance, Surgical; D007902:Length of Stay; D008923:Missouri; D011446:Prospective Studies