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London: Economist Intelligence Unit, 1995
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London: Oxford University Press, 2012
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Cambridge [u.a.]: Cambridge Univ. Press, 2000
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The Open Journal, 2023
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JSTOR, 1984
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Ovid Technologies (Wolters Kluwer Health), 2008
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Wiley, 1987
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Elsevier BV, 1987
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Wiley, 1980
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American Chemical Society (ACS), 2008
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Elsevier BV, 1999
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Springer Science and Business Media LLC, 1986
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Elsevier BV, 1982
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Elsevier BV, 2009
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MDPI AG, 2022
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Springer Science and Business Media LLC, 2021
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BMJ, 2016
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Oxford University Press (OUP), 2015
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OXFORD UNIVERSITY PRESS, 2014
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OXFORD UNIVERSITY PRESS, 2013