title: Insurance copayments and delays in seeking emergency care.
authors.forename: S B
authors.initials: SB
authors.lastname: Soumerai
authors.forename: D
authors.initials: D
authors.lastname: Ross-Degnan
mesh_terms: D017047:Cost Sharing / Q000706:statistics & numerical data*; D003430:Cross-Sectional Studies; D003669:Deductibles and Coinsurance; D004636:Emergency Service, Hospital / Q000191:economics* / Q000706:statistics & numerical data; D006279:Health Maintenance Organizations; D006801:Humans; D009203:Myocardial Infarction / Q000191:economics* / Q000628:therapy; D013997:Time Factors