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Science 6 April 1979:
Vol. 204. no. 4388, p. 8
DOI: 10.1126/science.204.4388.8-d
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Erratum

William Beaver was erroneously identified in a recent story about Darvon (News and Comment, 2 Mar., p. 857) as a professor at George Washington University; he is actually a professor at Georgetown University.

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