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Abstract
Mesh: See more » Actuarial AnalysisIncome/statistics & numerical dataInsurance, Physician Services/statistics & numerical dataInsurance, Physician Services/trendsMedicare/statistics & numerical dataMedicare/trendsUnited States
Year: 1990 PMID: 2196701
Source DB: PubMed Journal: Soc Secur Bull ISSN: 0037-7910