Volume 77, no. 19, p. 10684-10688, 2003. Page 10685, Fig. 2: The y axis should read “% GFP-expressing cells.”
Page 10687, Fig. 4: The y axes of panels A and C should read “% GFP-expressing cells,” and the y axes of panels B and D should read “Number of plaques per well.”
Page 10687, Fig. 5: The y axis should read “% GFP-expressing cells.”