title: Poor stratification distorts the facts in "Characteristics of frequent users...".
authors.forename: Michael
authors.initials: M
authors.lastname: Franklin
mesh_terms: D004636:Emergency Service, Hospital / Q000706:statistics & numerical data*; D019538:Health Care Surveys; D005102:Health Expenditures; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D017057:Medically Uninsured; D014481:United States