1. Wein AJ, Kavoussi LR, Novick AC, Partin AW, Peters CA. Chapter 6 Basic instrumentation and cystoscopy. In: Wein AJ, Kavoussi LR, Novick AC, Partin AW, Peters CA, eds. Campbell-Walsh Urology. 9th ed. Philadelphia, PA: Saunders Elsevier; 2007:168-70
2. Borin JF, Abdelshehid CS, Clayman RV. Comparison of resolution, contrast, and color differentiation among fiberoptic and digital flexible cystoscopes. J Endourol. 2006;20(1):54-58
3. Preminger GM, Tiselius HG, Assimos DG, et al. 2007 guideline for management of ureteral calculi. J Urol. 2007;178:2418-34
4. Wein AJ, Kavoussi LR, Novick AC, Partin AW, Peters CA. Chapter 45 Ureteroscopy and retrograde ureteral access. In: Wein AJ, Kavoussi LR, Novick AC, Partin AW, Peters CA, eds. Campbell-Walsh Urology. 9th ed. Philadelphia, PA: Saunders Elsevier; 2007:1508
5. Wein AJ, Kavoussi LR, Novick AC, Partin AW, Peters CA. Chapter 43 Evaluation and medical management of urinary lithiasis. In: Wein AJ, Kavoussi LR, Novick AC, Partin AW, Peters CA, eds. Campbell-Walsh Urology. 9th ed. Philadelphia, PA: Saunders Elsevier; 2007:1433