1. Erasmus University Medical Center; Department of Radiology and Nuclear Medicine; 's-Gravendijkwal 230 Room NA-1710, P.O. Box 2040 Rotterdam Zuid-Holland Netherlands 3015 CE
2. Erasmus University Medical Center; Department of Urology; Rotterdam Netherlands
3. Erasmus University Medical Center; Department of Public Health; PO Box 2040 Rotterdam Netherlands 3000 CA