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Elsevier‎(2000)‎

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By Sarangi S.   Verbrugge R.   in Economics Letters

ISSN:0165-1765|69|2|153-158

Elsevier‎(2000)‎

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By Feifer R.A.   Verbrugge R.R.   Khalid M.   Levin R.   O’Keefe G.B.   Aubert R.E.   in Disease Management & Health Outcomes

ISSN:1173-8790|12|2|93-102

Adis International‎(2004)‎

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