[1] Univ Hosp Leuven, Dept Urol, B-3000 Leuven, Belgium
[2] Katholieke Univ Leuven, Lab Mol Endocrinol, B-3000 Leuven, Belgium
[3] Friedrich Alexander Univ Erlangen Nurnberg, Dept Pathol, D-91054 Erlangen, Germany
[4] Polytech Univ theMarche Reg, United Hosp, Sch Med, Sect Pathol Anat, I-60121 Ancona, Italy
[5] Univ Hosp Leuven, Dept Pathol, B-3000 Leuven, Belgium