1. Department
of Organic Chemistry, Vrije Universiteit Brussel, Brussels, Belgium
2. Institute
of Pharmacology, Polish Academy of Sciences, Kraków, Poland
3. Neuropeptide
Laboratory, Medical Research Centre, Polish Academy of Sciences, Warsaw, Poland
4. Department
of Pharmacology, University of Arizona, Tucson, Arizona 85721, United States
5. Animal
Physiology and Neurobiology Department, Katholieke Universiteit Leuven (KU Leuven), Leuven, Belgium
6. Department
of Chemical Biology and Peptide Research, Clinical Research Institute of Montreal, Montreal, Canada
7. Janssen Research & Development, a division of Janssen Pharmaceutica NV, Beerse, Belgium