title: Spending and quality of care for Medicare beneficiaries in Massachusetts--reply.
authors.affiliation: Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts.
authors.forename: J Michael
authors.initials: JM
authors.lastname: McWilliams
authors.affiliation: Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts.
authors.forename: Bruce E
authors.initials: BE
authors.lastname: Landon
authors.affiliation: Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts.
authors.forename: Michael E
authors.initials: ME
authors.lastname: Chernew
mesh_terms: D060866:Accountable Care Organizations / Q000191:economics*; D005260:Female; D005102:Health Expenditures / Q000639:trends*; D006801:Humans; D008297:Male; D006278:Medicare / Q000191:economics*; D005791:Patient Care; D058996:Quality Improvement