Leo M. Chalupa is Vice President for Research and Professor of Pharmacology and Physiology at George Washington University.

Robert W. Williams is Professor in the Department of Anatomy and Neurobiology and the Dunavant Chair of Developmental Genetics in Pediatrics and the University of Tennessee. He is codirector of the Center of Genomics and Bioinformatics at the University of Tennessee Health Science Center and founding director of the Complex Trait Consortium.