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de Wolf I, Fielmich-Bouman X, Lankhorst A, van Oost B, Beynen A, Kren V, Pravenec M, van Zutphen B, van Lith H.de Wolf I, et al. Among authors: lankhorst a.J Trace Elem Med Biol. 2003;17(3):177-82. doi: 10.1016/S0946-672X(03)80023-8.J Trace Elem Med Biol. 2003.PMID: 14968930
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