1. Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, NY 10021, USA.
2. Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, Sweden.
3. Unite de Neuropsychopharmacologie Experimentale—CNRS FRE2735, European Institute for Peptide Research (IFRMP 23), Faculty of Medicine and Pharmacy, Rouen F76183 Cedex, France.
4. Neuroscience Discovery Research, Eli Lilly and Company, Lilly Corporate Center, Indianapolis, IN 46285, USA.