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London: Oxford University Press, c 1974
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New York: Knopf, 1969
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Wiley, 2004
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Informa UK Limited, 1990
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Informa UK Limited, 1990
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BMJ, 2023
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JSTOR, 1964
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JSTOR, 1998
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SAGE Publications, 2015
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JSTOR, 1968
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JSTOR, 1997
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Institute of Electrical and Electronics Engineers (IEEE), 2016
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Elsevier BV, 2014
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Elsevier BV, 2013
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JSTOR, 1980
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JSTOR, 1970
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Public Library of Science (PLoS), 2011
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Springer Berlin Heidelberg, 2006
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Elsevier BV, 1999
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Elsevier BV, 1999