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Basel [u.a.]: Karger, 1976
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Elsevier BV, 1978
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Wiley, 1997
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Georg Thieme Verlag KG, 1987
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Ovid Technologies (Wolters Kluwer Health), 1976
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Elsevier BV, 1976
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Elsevier BV, 1987
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Elsevier BV, 1980
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Elsevier BV, 1978
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Wiley, 2002
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American Academy of Pediatrics (AAP), 1999
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Elsevier BV, 1986
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American Medical Association (AMA), 2002
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Informa UK Limited, 1986
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Springer Science and Business Media LLC, 1978
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Elsevier BV, 1981
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American Academy of Pediatrics (AAP), 2003