title: Savings from the Medicare Physician Group Practice Demonstration--reply.
authors.forename: Carrie
authors.initials: C
authors.lastname: Colla
authors.forename: Elliott
authors.initials: E
authors.lastname: Fisher
authors.forename: Jonathan
authors.initials: J
authors.lastname: Skinner
mesh_terms: D017046:Cost Savings; D006123:Group Practice / Q000191:economics*; D005102:Health Expenditures / Q000706:statistics & numerical data*; D006801:Humans; D006278:Medicare / Q000191:economics*; D012052:Reimbursement, Incentive