title: Reply by the authors.
authors.affiliation: Department of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou, People's Republic of China.
authors.forename: Bingkun
authors.initials: B
authors.lastname: Li
authors.affiliation: Department of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou, People's Republic of China.
authors.forename: Hulin
authors.initials: H
authors.lastname: Li
mesh_terms: D000772:Anesthesia, Local / Q000379:methods*; D005260:Female; D006801:Humans; D007669:Kidney Calculi / Q000601:surgery*; D008297:Male; D009403:Nephrostomy, Percutaneous / Q000379:methods*; D014545:Urinary Calculi / Q000601:surgery*