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2017
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New York: Oxford University Press, 2014
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2022
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[S.l.]: SSRN, [2021]
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Washington, DC: World Bank
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Wiley, 2020
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BMJ, 2017
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BMJ Publishing Group Ltd, 2017
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Latin America Journals Online, 2010
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2003
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BMJ Publishing Group, 1999
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Wiley, 1997
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Springer Science and Business Media LLC, 1994
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Wiley, 1993
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Cambridge University Press (CUP), 1994
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Beech Tree Publishing, 1994
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JSTOR, 1991
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JSTOR, 1989
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JSTOR, 1988
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University of Chicago Press, 1987