1. Department of Psychology and Alan Edwards Centre for Research on Pain, McGill University, Montreal, Quebec H3A 1B1, Canada.
2. Genomic Institute of the Novartis Research Foundation, San Diego, CA 92121, USA.
3. Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA.
4. Department of Biochemistry, University of Cambridge, Cambridge CB2 1QW, UK.
5. National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709, USA.
6. Center for Neurosensory Disorders, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
7. Department of Pharmacology and Toxicology, Virginia Commonwealth University, Richmond, VA 23219, USA.
8. Departments of Anesthesiology and Human Genetics, University of Pittsburgh, Pittsburgh, PA 15213, USA.
9. Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, IN 47907, USA.
10. Department of Pharmacology, King Saud University, P. O. Box 2457, Riyadh 11451, Saudi Arabia.
11. Section for Surgical Pathophysiology, Rigshospitalet, Copenhagen University, 2100 Copenhagen, Denmark.
12. Department of Surgery, Marienhospital Stuttgart, 70199 Stuttgart, Germany.
13. Department of Chemistry, University of Kentucky, Lexington, KY 40506, USA.
14. Department of Dental Ecology, School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
15. Neurobiologie Intégrative des Systèmes Cholinergiques, CNRS UMR 3571, Département de Neuroscience, Institute Pasteur, 75724 Paris, France.
16. Department of Cell and Developmental Biology, Institute of Life Sciences and Center for Research on Pain, Hebrew University of Jerusalem, Jerusalem 91904, Israel.
17. Faculty of Dentistry, Department of Anesthesia, and Alan Edwards Centre for Research on Pain, McGill University, Montreal, Quebec H3A 1G1, Canada.
18. Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA.
19. Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA.
20. Department of Molecular and Cellular Neuroscience, The Scripps Research Institute, and Howard Hughes Medical Institute, La Jolla, CA 92037, USA.