17 The risk of venous thromboembolism after cystectomy and prostatectomy with or without a pelvic lymph-node dissection - O. Akre; J. Rautiola; J. Björklund; R. Zelic; F. Pellegrino; P.H. Vincent; M. Aly; H. Falconer; P. Wiklund (European Urology Open Science)