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London: HMSO [u.a.], 1993
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American Academy of Pediatrics (AAP), 2005
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American Academy of Pediatrics (AAP), 1982
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American Academy of Pediatrics (AAP), 1981
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American Academy of Pediatrics (AAP), 1999
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American Academy of Pediatrics (AAP), 1980
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American Academy of Pediatrics (AAP), 1979
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Elsevier BV, 1977
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American Academy of Pediatrics (AAP), 2006
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Southern Medical Association, 1979
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American Academy of Pediatrics (AAP), 2009
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Southern Medical Association, 1981
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American Public Health Association, 2012
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Ovid Technologies (Wolters Kluwer Health), 1983
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Ovid Technologies (Wolters Kluwer Health), 1983
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Southern Medical Association, 1982
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Frontiers Media SA, 2021
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American Academy of Pediatrics (AAP), 2013
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American Academy of Pediatrics (AAP), 2019
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American Academy of Pediatrics (AAP), 2017