1. Fred Hutchinson Cancer Research Center, University of Washington, Seattle, WA 98109, USA.
2. Department of Biostatistics, University of Washington, Seattle, WA 98195, USA.
3. Department of Physics, Northeastern University, Boston, MA 02115, USA.
4. Department of Biology, Pennsylvania State University, University Park, PA 16802, USA.
5. Department of Epidemiology, University of Washington, Seattle, WA 98195, USA.
6. Department of Fish and Wildlife Conservation, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA.
7. Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY 10032, USA.
8. Odum School of Ecology, University of Georgia, Athens, GA 30602, USA.
9. Francis I. Proctor Foundation, University of California, San Francisco, CA 94143, USA.
10. Department of Epidemiology, University of Michigan, Ann Arbor, MI 48109, USA.
11. Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
12. Virginia Bioinformatics Institute, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA.
13. Santa Fe Institute, Santa Fe, NM 87501, USA.
14. Department of Mathematics, Tulane University, New Orleans, LA 70118, USA.
15. Department of Population Health Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA.
16. Department of Biostatistics, University of Florida, Gainesville, FL 32611, USA.