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Springer Publishing Company ‎(2007)‎

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By Wensing M.   Mainz J.   Ferreira P.   Hearnshaw H.   Hjortdahl P.   Olesen F.   Reis S.   Ribacke M.   Szecsenyi J.   Grol R.   in Health Policy

ISSN:0168-8510|45|3|175-186

Elsevier‎(1998)‎

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