1. Division of Regenerative Medicine, Stem Cells and Gene Therapy, San Raffaele Scientific Institute, 20132 Milan, Italy.
2. Vita-Salute San Raffaele University, 20132 Milan, Italy.
3. Department of Physiology and Interuniversity Institute of Myology, University of Pavia, 27100 Pavia, Italy.
4. Department of Biology, University of Milan, 20133 Milan, Italy.
5. Department of Histology and Medical Embryology, “Sapienza” University of Rome, 00161 Rome, Italy.
6. Casa di Cura San Raffaele, 67039 Sulmona, L’Aquila, Italy.
7. Department of Neurological Science, University of Milan, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico Mangiagalli-Regina Elena, 20122 Milan, Italy.
8. Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, Tottori University, Yonago 683-8503, Japan.
9. Fondazione Salvatore Maugeri (IRCCS), Scientific Institute of Pavia, 27100 Pavia, Italy.