1. The First Clinical College, Gannan Medical University, Ganzhou 341000, China
2. Department of Urology, The First Affiliated Hospital of Gannan Medical University, Ganzhou 341000, China
3. Institute of Urology, The First Affiliated Hospital of Gannan Medical University, Ganzhou 341000, China
4. Jiangxi Engineering Technology Research Center of Calculi Prevention, Ganzhou 341000, China