1. Radiology Unit, Medical Imaging Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
2. Pediatric Oncology Department, Hospital Pediátrico, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
3. Neuroradiology Unit, Medical Imaging Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal