Retraction. Tanji H, Ishikawa C, Sawada S, Nakachi S, Takamatsu R, Matsuda T, Okudaira T, Uchihara J-N, Ohshiro K, Tanaka Y, Senba M, Uezato H, Ohshima K, Duc Dodon M, Wu K-J, Mori N. Aberrant expression of the transcription factor Twist in adult T-cell leukemia [published online ahead of print January 13, 2010]. Blood. doi:10.1182/blood-2009-07-232231.