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2
Essential metals in medicine
therapeutic use and toxicity of metal ions in the clinic
Metal ions in life sciences ; volume 19
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4
Yearbook of the United States Department of Agriculture 191
United States congressional serial set ; serial set no. 6838;House document / 63rd Congress, 3rd session. House ; no. 1682
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5
Yearbook of the United States Department of Agriculture. 19..
United States congressional serial set ; serial set no. 6695;House document / 63rd Congress, 2nd session. House ; no. 989