title: Perils of prediction in U.S./Canadian comparisons.
authors.forename: D U
authors.initials: DU
authors.lastname: Himmelstein
authors.forename: S
authors.initials: S
authors.lastname: Woolhandler
mesh_terms: D002170:Canada; D003625:Data Collection; D005102:Health Expenditures / Q000706:statistics & numerical data*; D014481:United States