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Scientific Research Publishing, Inc., 2016
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Elsevier BV, 2011
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Oxford University Press (OUP), 2016
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Oxford University Press (OUP), 2016
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Springer Science and Business Media LLC, 2012
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Springer Science and Business Media LLC, 2012
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Elsevier BV, 2007
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Elsevier BV, 2006
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Ovid Technologies (Wolters Kluwer Health), 2005
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Frontiers Media SA, 2016
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Public Library of Science (PLoS), 2013
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Public Library of Science (PLoS), 2012
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SAGE Publications, 2011
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Elsevier BV, 2011
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Oxford University Press (OUP), 2010
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Elsevier BV, 2010
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Ovid Technologies (Wolters Kluwer Health), 2006
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Wiley, 2001
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Public Library of Science (PLoS), 2011
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Public Library of Science (PLoS), 2008