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Science 14 February 1992:
Vol. 255. no. 5046, p. 784
DOI: 10.1126/science.255.5046.784-b
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Erratum

Joyce Higgins should have been named as the source of the illustration on page 651 accompanying the Research News article "Playing tag with membrane proteins" by Michelle Hoffman (1 Nov., p. 650).

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