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| Comparison of the Effect of Percutaneous Nephrolithotomy and Flexible Negative Pressure Ureteral Access Sheath Combined with Flexible Ureteroscopic Lithotripsy in the Treatment of Patients with Renal Calculus (≥1.3 cm) |
| OUYANG Wei, ZHAO Jun, ZHANG Wenyuan, YANG Yanfeng, CAI Yuanjue |
| First-author's address: Department of Urology, Ji’an Central People's Hospital, Ji’an 343000, China |
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