[1] Univ Washington, Dept Pharmacol, Seattle, WA 98195 USA
[2] Hoffmann La Roche Ag, Pharmaceut Res, CH-4070 Basel, Switzerland
[3] Univ Iowa, Dept Physiol & Biophys, Howard Hughes Med Inst, Iowa City, IA 52242 USA
[4] EnkephaSys, Santa Fe, NM 87505 USA
[5] Tech Univ Munich, Inst Pharmacol & Toxicol, D-80802 Munich, Germany
[6] Natl Inst Physiol Sci, Dept Informat Physiol, Okazaki, Aichi 444, Japan
[7] Univ Virginia, Dept Pharmacol, Charlottesville, VA 22908 USA
[8] Univ Cincinnati, Coll Med, Dept Pharmacol & Cell Biophys, Cincinnati, OH 45267 USA
[9] Univ British Columbia, Biotechnol Lab, Vancouver, BC V6T 1Z3, Canada
[10] Tokyo Med & Dent Univ, Grad Sch Med, Dept Pharmacol & Neurobiol, Tokyo 1138519, Japan
[11] Univ Calif Los Angeles, Dept Cell Biol, Los Angeles, CA 90095 USA
[12] Stanford Univ, Dept Cellular & Mol Physiol, Stanford, CA 94305 USA