Medicine: Fallout Remedy?

The major menace of radioactive strontium is that chemically it behaves too much like calcium. The human body must have calcium, especially for its bones, but it makes little distinction between calcium and strontium. So when there is strontium around, it picks that up too—and deposits it in the bones where the radioactive forms can do the most harm.* When doctors try to flush strontium out of the system, the body is similarly undiscriminating: it is likely to get rid of too much calcium at the same time.

Last week in San Francisco, Biochemist...

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