Sandra Soo-Jin Lee, Joanna Mountain, Barbara Koenig, Russ Altman, Melissa Brown, Albert Camarillo, Luca Cavalli-Sforza, Mildred Cho, Jennifer Eberhardt, Marcus Feldman, Richard Ford, Henry T. Greely, Roy King, Hazel Markus, Debra Satz, Matthew Snipp, Claude Steele and Peter Underhill, Open Letter - The Ethics of Characterizing Difference: Guiding Principles on using Racial Categories in Human Genetics, 9 Genome Biology art. 404 (July 2008).