:Talk:Ultratrace element

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Some possible sources

http://www.dcnutrition.com/minerals/mineral-abstracts.shtml - includes more work by Nielsen, alternative definition, and includes lithium as an ultatrace in humans. Andrewa (talk) 16:25, 29 January 2011 (UTC)

Stub categories

I'm a bit surprised to find no :Category:human metabolism stubs or even :Category:metabolism stubs or equivalents, especially since :Category:Biochemistry stubs is so large. Andrewa (talk) 16:01, 29 January 2011 (UTC)