Managed care. Maybe patients don't hate gatekeeping so much, after all.
D003625:Data Collection; D008329:Managed Care Programs / Q000592:standards / Q000706:statistics & numerical data*; D017060:Patient Satisfaction / Q000706:statistics & numerical data*; D012017:Referral and Consultation / Q000592:standards / Q000706:statistics & numerical data*; D014481:United States