[1] Okitama Publ Gen Hosp, Dept Urol, Kawanishi Town, Yamagata 9920601, Japan
[2] Yamagata Univ, Sch Med, Dept Urol, Yamagata 990, Japan
[3] Yamagata Univ, Sch Med, Dept Gynaecol, Yamagata 990, Japan
[4] Yamagata Univ, Sch Med, Dept Pathol, Yamagata 990, Japan
[5] Inst Gustave Roussy, Lab Physicochem & Pharmacol Biol Macromol, CNRS, UMR 1772, Villejuif, France