On the table of contents page of the December 2002 issue, two authors of the correspondence entitled “Expectations and reality in gene repair”, Olga Igoucheva and Vitali Alexeev, were omitted. On p. 1198 (Nat. Biotechnol. 20, 1197; 2002), the text also contains an error: "In contrast, oligodeoxynucleotides exhibit a much greater gene correction rate than RDOs..." This should be replaced by "In contrast, oligodeoxynucleotides exhibit a much more consistent gene correction rate than RDOs..." Nature Biotechnology regrets the errors.
The online version of the original article can be found at 10.1038/nbt1202-1197b