A universal method for quantifying and c
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P. B. Lobel; S. P. Belkhode; S. E. Jackson; H. P. Longerich
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Article
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1989
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Springer-Verlag
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English
โ 669 KB
The concentrations of elements in biological tissue may be influenced by a large number of environmental and physiological factors. Even when all known sources of variability have been either eliminated or taken into account, a very high degree of unexplained residual variability may persist between