Correction to: Oncogene (2004) 23, 4196–4197. doi:10.1038/sj.onc.1207626

Since publication of the above manuscript, the authors have identified an error in the text. In paragraph 3, the authors indicated that Dr Hirai identified the AML1/Runx1 gene product in some leukemias with t(12;21)(p13;q22). This should be t(3;21)(q26;q22).