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Science 14 May 1993:
Vol. 260. no. 5110, p. 879
DOI: 10.1126/science.260.5110.879-d
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Corrections and Clarifications

The x-axis of the graph accompanying Jon Cohen's News article "Keystone's blunt message: `It's the virus, stupid' " (16 Apr., p. 292) should have been labeled "Monkeys."

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