Impact of third party payment on the practice of optometry.
Rosenthal
J
J
D006279:Health Maintenance Organizations; D007349:Insurance, Health, Reimbursement / Q000191:economics / Q000639:trends*; D007354:Insurance, Major Medical; D008484:Medicaid; D006278:Medicare; D009907:Optometry / Q000191:economics* / Q000295:instrumentation / Q000639:trends; D014481:United States