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Heine RJ, Mulder C, Popp-Snijders C, van der Meer J, van der Veen EA.Heine RJ, et al.Am J Clin Nutr. 1989 Mar;49(3):448-56. doi: 10.1093/ajcn/49.3.448.Am J Clin Nutr. 1989.PMID: 2923077Clinical Trial.