1. Dompé Farmaceutici SpA, Via Campo di Pile, L'Aquila, Italy
2. Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
3. Dompé Farmaceutici SpA, Via Santa Lucia, Milano, Italy
4. National Institute for Nuclear Physics (INFN), Gran Sasso National Laboratory (LNGS), Assergi, Italy
5. Department of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy
6. Sbarro Institute for Cancer Research and Molecular Medicine and Center for Biotechnology, Temple University, Philadelphia, PA, USA