1. Department of Physiology, Neuroscience and Applied Physiology Unit, University of Siena, Via Aldo Moro 2, 53100 Siena Italy
2. Pain Neurophysiology and Therapy Centre, IRCCS Fondazione Salvatore Maugeri, Via S. Maugeri, 10 27100 Pavia, Italy
3. Department of Human Pathology and Oncology, University of Siena, Strada delle Scotte 6, 53100 Siena Italy
4. Sbarro Institute for Cancer Research and Molecular Medicine and Center of Biotechnology, Temple University Philadelphia PA USA
5. San Carlo Clinic, Via Ospedale, 21, 20037 Paderno Dugnano (Milano), Italy
6. Dipartimento Farmaco Chimico Tecnologico, Università degli Studi di Siena, Via A. Moro, 53100 Siena, Italy