2Plas EG, Hubner WA. Percutaneous resection of renal cysts: a long - term followup. J Urol, 1993,149(3): 703.
3Hanna RM, Dahniya MH. Aspiration and sclerotherapy of symptomatic simple renal cysts: value of two injections of a sclerosing agent. AJR, 1996, 167(3): 781.
4Zou SZ, Fan WN, He XH. Percutaneous ultrasound guided injec tion of sodium morrhuate in the treatment of renal cystic masses. Br J Urol, 1991, 68(2): 441.