In the article on how PSMA expression induces aneuploidy in the July 2008 (1) issue, Sergey Ryazantsev's name was not included in the list of authors. Dr. Ryazantsev's name should have appeared after Dr. Oshima's name. Dr. Ryazantsev's affiliation is Biological Chemistry, David Geffen School of Medicine, University of California, Los Angeles, California.