1. Restriction of long-term urethral catheterisation in the elderly;Cools;Br. J. Urol.,1986
2. Surface differentiation of various catheter materials by scanning electron microscopy;Dathe;Urologe A,1973
3. Urethral stents — indications, variations, and complications;Salzman;Urol. Clin. North. Am.,1988
4. The role of catheter surface morphology and extractable cytotoxic material in tissue reactions to urethral catheters;Wilksch;Br. J. Urol,1983
5. Infection of catheterised patients: bacterial colonisation of encrusted Foley catheters shown by scanning electron microscopy;Cox;Br. J. Urol.,1989