Before revision: Other Tungsten, the early lanthanides, and cadmium have specialized biochemical uses in certain lower organisms, but these elements appear not to be used by mammals.Ultratrace minerals.
After revision: TinRats fed a tin-free diet exhibited improper growth, but the evidence for essentiality is otherwise limited.Tin poisoningOther Tungsten, the early lanthanides, and cadmium have specialized biochemical uses in certain lower organisms, but these elements appear not to be used by mammals.Ultratrace minerals.