1. Telethon Institute of Genetics and Medicine, Pozzuoli, Italy.
2. Department of Translational Medicine, University of Naples Federico II, Naples, Italy.
3. Neurological Research Institute, Texas Children’s Hospital, Houston, TX, USA.
4. Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA.
5. Howard Hughes Medical Institute, Baylor College of Medicine, Houston, TX, USA.