Utilization review in the internal medicine department of an HMO clinic.
D006279:Health Maintenance Organizations / Q000706:statistics & numerical data*; D006748:Hospital Departments / Q000706:statistics & numerical data; D007388:Internal Medicine / Q000706:statistics & numerical data*; D008910:Minnesota; D010044:Outpatient Clinics, Hospital / Q000706:statistics & numerical data; D012017:Referral and Consultation; D014600:Utilization Review / Q000379:methods