[1] Pavlov First State Med Univ St Petersburg, Dept Endourol, St Petersburg, Russia
[2] N Lopatkin Sci Res Inst Urol & Intervent Radiol, Dept Urol, Moscow, Russia
[3] AI Yevdokimov Moscow State Univ Med & Dent, Dept Urol, Moscow, Russia
[4] Sechenov Univ, Inst Urol & Reprod Hlth, Dept Urol, Moscow, Russia
[5] Univ Hosp Southampton NHS Fdn Trust, Dept Urol, Southampton, Hants, England
[6] Minist Hlth Russian Federat, Natl Med Res Ctr Radiol, Dept Urol, Moscow, Russia