5Fabian K W. The intra-prostatic "partial catheter" ( urologische spir- ale). Urolonge, 1980,19:236-238.
6Vineente J, Salvador J, Chechile G. Spiral urethral prosthesis as an alternative to surgery in high risk patients with benign prostatic hy- perplasia: prospeetivestudy J Urol, 1989,142 : 1504-1506.
7Chapple C R, Milroy E J, Rickards D. Permanenly implanted ure- thral stent for prostatic obstruction in theunfit patient:preliminary report. Br I Uro1,1990,66:58-65.
8Yachia D, I-ask D, Rabinson S. Selfretaining intrurethral stent: an al- ternative to long-term indweningcatheters or surgery in the treatmentof prostatixm. AM J Roentgenol, 1990,154 : 111-113.
9Harrusin N W, DeSouza J V. Prostatic stenting or out flow obstruc- tion. Bri J Uml, 1990,65 : 192-192.
10Holmes S, Kirby R S. Encrustation on an in traprost aticstent a new complication. Br J Urol, 1992,69:322-322.
