Competition and regulation.
D003363:Cost Control / Q000331:legislation & jurisprudence; D003695:Delivery of Health Care / Q000191:economics*; D004465:Economic Competition; D005161:Facility Regulation and Control; D006291:Health Policy / Q000191:economics*; D006302:Health Services Research; D008389:Marketing of Health Services / Q000331:legislation & jurisprudence; D014481:United States