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Science 25 July 1997:
Vol. 277. no. 5325, p. 469
DOI: 10.1126/science.277.5325.469
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News & Comment

ENVIRONMENTAL POLICY:
Puzzling Over a Potential Killer's Modus Operandi

Jocelyn Kaiser

A big gap in the science behind new clean air regulations is the lack of understanding about how airborne particles could trigger a bout of asthma or cause someone to drop dead of a heart attack. A dozen labs are now racing to find a modus operandi, and some recent results have begun to mimic in animals the mortality patterns seen in people.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)