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Ovid Technologies (Wolters Kluwer Health), 2012
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Elsevier BV, 2012
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Ovid Technologies (Wolters Kluwer Health), 2011
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Ovid Technologies (Wolters Kluwer Health), 2010
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Ovid Technologies (Wolters Kluwer Health), 1988
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Massachusetts Medical Society, 2013
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Massachusetts Medical Society, 2010
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Oxford University Press (OUP), 2018