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ISSN:1360-0451|13|5|643-650

Routledge Ltd‎(2001)‎

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By Mays R.M.   Sturm L.A.   Zimet G.D.   in Social Science and Medicine

ISSN:0277-9536|58|7|1405-1413

Elsevier‎(2004)‎

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