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Ovid Technologies (Wolters Kluwer Health), 1983
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Ovid Technologies (Wolters Kluwer Health), 1983
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Ovid Technologies (Wolters Kluwer Health), 1981
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JSTOR, 1986
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Ovid Technologies (Wolters Kluwer Health), 2010
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Informa UK Limited, 2007
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Massachusetts Medical Society, 2006
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Massachusetts Medical Society, 2005
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American Public Health Association, 2004
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Elsevier BV, 2000
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Oxford University Press (OUP), 1997
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Ovid Technologies (Wolters Kluwer Health), 1983
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Elsevier BV, 1976
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Springer Science and Business Media LLC, 2013
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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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Springer Science and Business Media LLC, 2011
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Massachusetts Medical Society, 2007
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2003
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Oxford University Press (OUP), 2000