[1] Univ Perugia, I-06100 Perugia, Italy
[2] Duke Univ, Med Ctr, Div Med Oncol, Durham, NC 27706 USA
[3] Duke Univ, Med Ctr, Div Urol, Durham, NC 27706 USA
[4] McGill Univ, Dept Orthopaed Surg, Ctr Hlth, Montreal, PQ, Canada
[5] Thrombosis Res Inst, London SW3 6LR, England
[6] UCL, London, England
[7] Glostrup Cty Hosp, Glostrup, Denmark
[8] Univ St Etienne, Clin Pharmacol Unit, St Etienne, France
[9] Klinikum Frankfurt, Hochst, Germany
[10] Sanofi Aventis, R&D, Bridgewater, MA USA
[11] McMaster Univ, Hamilton, ON, Canada