Affiliation: | 1. Gene Expression Laboratory and the Howard Hughes Medical Institute, The Salk Institute for Biological Studies, 10010 North Torrey Pines, La Jolla, CA 92037, USA;2. Program in Genomics of Differentiation, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Building 6B, Room 2B-211, Bethesda, MD 20892, USA |