1. Unidad en Investigación y Desarrollo de Medicamentos, Centro de Investigación en Farmacobiología Aplicada (CIFA), University of Navarra, C/Irunlarrea 1, 31080 Pamplona, Spain
2. Dipartimento di Scienze del Farmaco, University of Catania, V. le Andrea Doria 6 Ed, 2 Città Universitaria, I-95125, Catania, Italy
3. Department of Pharmacology, University of Navarra, C/Irunlarrea 1, 31080 Pamplona, Spain
4. Department of Pharmacology, University of Oslo and Oslo University Hospital, N-0316 Oslo, Norway
5. I.R.C.C.S. Instituto Neurologico Mediterraneo Neuromed, Localitá Camerelle, 86077 Pozzilli (IS), Italy
6. Department of Physiology and Pharmacology, University of Rome Sapienza, Italy