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van den Berg A, van Elburg RM, Vermeij L, van Zwol A, van den Brink GR, Twisk JW, Nieuwenhuis EE, Fetter WP.van den Berg A, et al. Among authors: fetter wp.J Pediatr Gastroenterol Nutr. 2009 Jan;48(1):94-101. doi: 10.1097/MPG.0b013e3181805116.J Pediatr Gastroenterol Nutr. 2009.PMID: 19172131Clinical Trial.
Van Zwol A, Van Den Berg A, Knol J, Twisk JW, Fetter WP, Van Elburg RM.Van Zwol A, et al. Among authors: fetter wp.Acta Paediatr. 2010 Dec;99(12):1868-74. doi: 10.1111/j.1651-2227.2010.01934.x.Acta Paediatr. 2010.PMID: 20626364
van Zwol A, van den Berg A, Huisman J, Vermeulen RJ, Fetter WP, Twisk JW, van Elburg RM.van Zwol A, et al. Among authors: fetter wp.Acta Paediatr. 2008 May;97(5):562-7. doi: 10.1111/j.1651-2227.2008.00719.x.Acta Paediatr. 2008.PMID: 18394100
van den Berg A, van Elburg RM, Twisk JW, Fetter WP.van den Berg A, et al. Among authors: fetter wp.BMC Pediatr. 2004 Sep 1;4:17. doi: 10.1186/1471-2431-4-17.BMC Pediatr. 2004.PMID: 15341667Free PMC article.Clinical Trial.
van den Berg A, van Elburg RM, Westerbeek EA, Twisk JW, Fetter WP.van den Berg A, et al. Among authors: fetter wp.Am J Clin Nutr. 2005 Jun;81(6):1397-404. doi: 10.1093/ajcn/81.6.1397.Am J Clin Nutr. 2005.PMID: 15941893Free article.Clinical Trial.
van den Berg A, van Elburg RM, Teerlink T, Lafeber HN, Twisk JW, Fetter WP.van den Berg A, et al. Among authors: fetter wp.J Pediatr Gastroenterol Nutr. 2005 Jul;41(1):66-71. doi: 10.1097/01.mpg.0000167497.55321.65.J Pediatr Gastroenterol Nutr. 2005.PMID: 15990633Clinical Trial.
van den Berg A, Fetter WP, Westerbeek EA, van der Vegt IM, van der Molen HR, van Elburg RM.van den Berg A, et al. Among authors: fetter wp.JPEN J Parenter Enteral Nutr. 2006 Sep-Oct;30(5):408-14. doi: 10.1177/0148607106030005408.JPEN J Parenter Enteral Nutr. 2006.PMID: 16931609Clinical Trial.
van den Berg A, van Elburg RM, Westerbeek EA, van der Linde EG, Knol J, Twisk JW, Fetter WP.van den Berg A, et al. Among authors: fetter wp.Clin Nutr. 2007 Aug;26(4):430-9. doi: 10.1016/j.clnu.2007.03.002. Epub 2007 May 11.Clin Nutr. 2007.PMID: 17499398Clinical Trial.
van den Berg A, van Zwol A, Moll HA, Fetter WP, van Elburg RM.van den Berg A, et al. Among authors: fetter wp.Arch Pediatr Adolesc Med. 2007 Nov;161(11):1095-101. doi: 10.1001/archpedi.161.11.1095.Arch Pediatr Adolesc Med. 2007.PMID: 17984413Clinical Trial.