title: Commentary: Patient Cost Sharing and Medical Expenditures for the Elderly.
authors.affiliation: Graduate Health Economics and Pharmacoeconomics Curricula, Faculty of Medical Sciences, University of Kragujevac Kragujevac, Serbia.
authors.forename: Mihajlo
authors.initials: M
authors.lastname: Jakovljevic
keywords: Japan; cost sharing; elderly; medical expenditure; population aging