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Leipzig: Hofmeister, 1956
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[S.l.]: SSRN, 2022
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Springer Science and Business Media LLC, 2005
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Ovid Technologies (Wolters Kluwer Health), 2004
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Ovid Technologies (Wolters Kluwer Health), 2004
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American Academy of Pediatrics (AAP), 1992
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Walter de Gruyter GmbH, 2005
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SAGE Publications, 2003
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Elsevier BV, 2014
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Berlin; Boston: De Gruyter, [2018]