Second opinion plans seen saving money.
D003362:Cost-Benefit Analysis; D006801:Humans; D007348:Insurance, Health / Q000191:economics*; D007359:Insurance, Surgical / Q000191:economics*; D009519:New York City; D012017:Referral and Consultation / Q000191:economics*; D013514:Surgical Procedures, Operative / Q000191:economics*