Measuring access to effective care among elderly medicare enrollees in managed and fee-for-service care: a retrospective cohort study

Research article

Mary B Barton^*, Debra A Dayhoff, Stephen B Soumerai, Margo L Rosenbach and Robert H Fletcher

BMC Health Services Research 2001, 1:11 doi:10.1186/1472-6963-1-11

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