A Healthful Dab of Radiation?

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Science  17 Oct 2003:
Vol. 302, Issue 5644, pp. 378
DOI: 10.1126/science.302.5644.378

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The notion that certain toxic chemicals can be healthful in small doses is stirring new controversy (see main text), but a similar debate about low-dose ionizing radiation has been raging for decades.

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