title: Development on adjustable calibration marker for shock wave focus.
authors.affiliation: Department of Urology, Drum Tower Hospital, Nanjing University, Nanjing 210008. sunxizhao@sohu.com
authors.forename: Xi-Zhao
authors.initials: XZ
authors.lastname: Sun
authors.forename: Zhi-Wei
authors.initials: ZW
authors.lastname: Zhang
mesh_terms: D006801:Humans; D008096:Lithotripsy / Q000295:instrumentation / Q000379:methods*; D014514:Ureteral Calculi / Q000628:therapy*