1. Department of Nuclear Medicine, PET Unit, Policlinico “S. Orsola-Malpighi,” Bologna, Italy.
2. Department of Pediatrics, “ S. Anna ” University Hospital, Ferrara, Italy.
3. Department of Radiology, Great Ormond Street Hospital for Children, London, United Kingdom.
4. Department of Nuclear Medicine, PET Unit, “ S. Maria della Misericordia ” Hospital, Rovigo, Italy.