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VOLUME 276 (2001) PAGES 16824–16832
PAGE 16828:
The image of the Madin Darby bovine kidney cells incubated without Ehrlich ascites tumor cell cytosolic extract in Fig. 3Ac, incorrectly duplicated the image of cells incubated with extract in Fig. 3Ad. The correct images are shown. This correction does not change the interpretation of the results or the conclusions of this work.
