1. Nova Medical School, Universidade Nova de Lisboa, Lisbon, Portugal
2. Department of Radiology, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal
3. Department of Radiology, Hospital Lusíadas, Lisbon, Portugal
4. Interventional Radiology, Saint Louis Hospital, Lisbon, Portugal
5. Interventional Radiology Unit, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal