摘要
The rare earth elements at large dose are poisonous to organisms. The mechanism of the poisoning may be complex. But the rare earth elements poisoning as well as some other metal poisonings (e. g. lead, gold and mercury) exhibit a common feature——to deposit in bodies. The rare earth elements, from lanthanum to samarium (Sm)which were injected in-
基金
Project supported by the National Natural Science Foundation of China.