Percutaneous nephrolithotomy with ultrasonography‐guided renal access: experience from over 300 casesMahmoud M. Osman, Thomas Knoll, Gunnar Wendt‐Nordahl et al.|British Journal of Urology|2005Cited by 279
5-year-follow-up of Patients with Clinically Insignificant Residual Fragments after Extracorporeal Shockwave LithotripsyMahmoud M. Osman, Thomas Knoll, Yvonne Alfano et al.|European Urology|2005Cited by 235
Cystinuria in childhood and adolescence: recommendations for diagnosis, treatment, and follow-upThomas Knoll, P. Alken, Antonia Z�llner et al.|Pediatric Nephrology|2004Cited by 177
Do Patients Benefit from Miniaturized Tubeless Percutaneous Nephrolithotomy? A Comparative Prospective StudyThomas Knoll, Gunnar Wendt‐Nordahl, Felix Wezel et al.|Journal of Endourology|2010Cited by 158
Donor‐site morbidity in buccal mucosa urethroplasty: lower lip or inner cheek?S. Kamp, P. Alken, Axel Häcker et al.|British Journal of Urology|2005Cited by 111