In the letter to the editor by D. Gurwitz in the Jan. 20, 1997, issue of The Scientist (page 13), the correct reference for R. Paddenberg et al. is European Journal of Cell Biology, 71:105-19, 1996. [corrected in the Web version]

A photo from the film 2001: A Space Odyssey that appeared on page 3 of the Feb. 17, 1997, issue of The Scientist should have been credited to Turner Enterainment.

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