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Ovid Technologies (Wolters Kluwer Health), 1984
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Ovid Technologies (Wolters Kluwer Health), 1984
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SAGE Publications, 1970
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Ovid Technologies (Wolters Kluwer Health), 2008
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American Astronomical Society, 2003
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American Association for the Advancement of Science, 2013
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Ovid Technologies (Wolters Kluwer Health), 2005
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Elsevier BV, 1993
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Cambridge University Press (CUP), 2020
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Public Library of Science (PLoS), 2013
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Elsevier BV, 1975
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American Society of Hematology, 2021