Cost no object. Big health care users don't shop around: study.
D003256:Community Participation / Q000191:economics*; D003625:Data Collection; D003669:Deductibles and Coinsurance; D006301:Health Services Needs and Demand / Q000191:economics*; D006302:Health Services Research / Q000191:economics*; D013223:Statistics as Topic; D014481:United States