1. The Learning Curve in the Training of Percutaneous Nephrolithotomy
Orhan Tanriverdi, Ugur Boylu, Muammer Kendirci, Mustafa Kadihasanoglu, Kaya Horasanli, Cengiz Miroglu 
European Urology 
Volume 52, Issue 1, Pages (July 2007)
DOI: /j.eururo
Copyright © 2007 European Association of Urology Terms and Conditions

2. Fig. 1 Mean operation time in hours with 95% confidence interval (CI).
European Urology  , DOI: ( /j.eururo )
Copyright © 2007 European Association of Urology Terms and Conditions

3. Fig. 2
Mean fluoroscopy screening time in minutes with 95% confidence interval (CI).
European Urology  , DOI: ( /j.eururo )
Copyright © 2007 European Association of Urology Terms and Conditions