title: HMO penetration and the cost of health care: market discipline or market segmentation?
authors.affiliation: Department of Health Research and Policy, Stanford University School of Medicine, CA 94305, USA.
authors.forename: L C
authors.initials: LC
authors.lastname: Baker
authors.forename: K S
authors.initials: KS
authors.lastname: Corts
mesh_terms: D003365:Costs and Cost Analysis; D004465:Economic Competition; D006279:Health Maintenance Organizations / Q000191:economics*; D006293:Health Promotion; D006801:Humans; D007349:Insurance, Health, Reimbursement; D008389:Marketing of Health Services; D014481:United States