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Dortmund: Verl. Modernes Lernen, 2003
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Elsevier Science, 2022
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BMJ, 2017
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American Psychological Association (APA), 1999
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American Psychological Association (APA), 1999
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Springer Science and Business Media LLC, 1995
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Oxford University Press (OUP), 2019
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JSTOR, 1985
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JSTOR, 1985
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Mary Ann Liebert Inc, 2023
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Elsevier BV, 2010
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American Diabetes Association, 2010
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Ovid Technologies (Wolters Kluwer Health), 2010
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Wiley, 1994
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SAGE Publications, 2023
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American Medical Association (AMA), 2022
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American Association for the Advancement of Science (AAAS), 2014
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American Association for the Advancement of Science, 2014
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Centers for Disease Control and Prevention (CDC), 2012
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Oxford University Press (OUP), 2009